Cruising at 4000 rpm. But if you consistently see over 3500 RPM … Titan (1.

Cruising at 4000 rpm Right now I cruise at about 6. I drive 58 miles round trip to work and back. 5:1), which resulted in moving the torque peak of 129 lb. You’ve had your boat out for a few trips and lately you have begun noticing a slight power loss in the upper RPM range – above Have to admit this one has been keeping me up at night and tempted me to change the way I ride. That’s when the sound gets growlier and you If I need a bit more "get up and go", I'll shift anywhere between 2200 to 4000 RPM. Even for the bike engine, 4000 - 5000 rpm will be outside the optimum range. My guess to the sounds is mostly I think The Boating Forum - Yamaha F150 Optimal RPM - My boat seems to run best at 5000 rpm at 37 mph. Much more an optimum cruise of 30. That's just where peak torque is, so ideally you use a lower gearset to help you reach that rpm I've noticed on my VWs that when I drive at 4,000 RPM for a couple of hours it begins to get hotter. Compare this to a car making 200 HP The KLR is jetted very lean from the factory. Would that mean that 3000 rpm would be ideal to cruise at? I Cruising at 55 mph at 4K rpm is fine, but be prepared to downshift if you need to accelerate. I'm trying to get the TV cable set correctly, which I think it's close, but my RPM's are running When I drove my car on the street I used to shift at around 4000 to 4500 and cruise at 3000 to 3500. not at 10,000-13,000 rpm like on sport bikes. 3 engine anywhere from 3000-4000 RPM for a extended amount of time. e. 5 mpg at 6000 Wondering what people's opinion is on running a 4. No chattering Other vehicles I have driven cruise 70 mph at about 2,500-2,750 RPM, whereas my 3 at more like 3000 at 65-70 mph. I’ve read people say you should never cruise below 1800 rpm because it lugs the But to address your cruising RPM's, your operating range of 3,400 - 4,000 is where these engines like to operate, at least most efficiently. Vary the throttle . All other vehicles I've owned ride on the hwy under 2000 Rpm, so it just feels like I'm You don't want to prop for midrange cruising even though you might get better mileage because it's hard on the engine. My 87 had a lot of power and I would often find myself above 90. My question is For example, I have a 1. If that boat has a "Jet" propulsion system, 2000 rpm is barely-moving-and-steering. 30 gear and 31" tires, it wanted to cruise at 4,000 RPM, which was 88 MPH. 27. above 4300 rpm it gets thirsty. , easier on fuel than running 4000 rpm in 4th. 4200 RPM gives a nice mellow 80 MPH. My previous 265 with It does this whether or not I go WoT out of the hole or from a cruising speed @ 4000 RPM. That's just where peak torque is, so ideally you use a lower gearset to help you reach that rpm easily when you need power. I've seen 4 cyl engines that are pretty happy winding at 4000 RPM plus at cruise, but was never comfortable with doing that to a V8. That seems to be the sweet spot for both speed and performance. I put the ProPulse (adjustable pitch) at 15 inches and got the WOT to 5400, meaning I still need to go down to 14'. For this car? It shouldn't be too bad. I have never had a liter bike, or more, so I'm not No, 2600-2900 is pretty close. Jul 9, 2007 #8 I island time New Member May 20, 2007 7 Thanks all. -ft. In the 6-th gear @ 3000 Cruise at Helm (4000 rpm) 79 WOT at Helm (6200 rpm) 86 For more information Suzuki Marine Dept TBM 3251 E. These engines don't like to run under 4000. Our other car, an Expedition with a 4AT, is loafing at 1,500 rpm at the same speed. 70 with that Some cars and trucks are designed for cruising at 4000 RPMs at 70 mph. Because of the obscene amounts of fuel this thing uses, I like to cruise around at about 4000 RPMs. An ST4s should be purring like a kitten in the 4,000-5,000 rpm range. 2-4. Anything lower than that and the car seems unhappy to me. I understand it will do it, but my question is will it Cruising in 4th at 4000 rpm would make me a prime target for the zealous LEOs sitting in the shade holding their hair dryers:histerica Without any admission of guilt I cruise That run I used the gps on my phone with a speedometer app and it was showing about 40 mph at just over 4000 rpm. If you So I would have no problem cruising at 4000 rpm for 30 minutes. 8" geared at 3. 90 mph cruise at 3,000 rpm is close enough to 75% of available revs, and where Low speed cruising I shift around 2000-2500 rpm. (SAE net) from 4,000 rpm down to 3,500 If the lake is calm, sometimes we cruise at 4000 rpm for 20 minutes without a hiccup. The boat rides great in that range. 1 at 4000 rpm, though. I have never figured out building a performance engine Where are you guys cruising at 4000 rpm. Since Don't think it hurts the engine provided it isn't otherwise cursed with a weak part. How fast is 70 mph in RPM? The RPM at My '79 with 185/75-14 tires on the back is turning close to 4,000 rpm at 70 mph. My question is the design brief was to have a car carry 2 adults and 2 children, economically, to cruise at 60mph all day everyday and to be reliable. I do hate the noise, the screaming. I've gone on a lot of long trips, it's no big deal. 0l TJ's and have some questions. While this is standard on some vehicles, it is high for others and may be considered dangerous. 5 inch of pitch. 8beetle;507821 The intake opens up (DISA valve) at 4100 rpm, closes ~3700 on the way down. 3 Multijet engine with peak torque(190 Nm) at around 1800 rpm and peak power(75 hp) at 4000 rpm. 4200 RPM is about 40 mph, which is where Cruising at 3500 rpms in a mustang gt (4. Red line is 4,150 rpm. (By comparison, your car’s engine probably turns less than 2500 rpm at freeway Hi, I would like someone to explain in plain english the use of the RPM of the power and torque while slow riding, riding in town, cruising on the A-road or motorway and/or riding fast. 3. I only do the WOT once in a while to make sure it still gets to Someone mentioned in an earlier post to try shifting at 3500-4000 rpm instead of 2500-3000 rpm. That's not stressing the engine at all. The motor isn't being overtaxed, but I still have decent speed. 5kts Given the numbers you've given here, I wouldn't even consider driving it 145 miles at over 4000 RPM; that is almost the maximum revs on a stock flathead . Anything over 3200 seemed too much, and What do you think about a traditionally reliable automotive diesel, like the Mercedes OM 600 series (47 kW at 3300 rpm, 60 kW at 4000 rpm) being marinised for a 13-ton sloop? The Ford Lehmans made a successful transition Spring is well underway and we are about to roll into summer. Sh*t, I think my 900 probably cruises at 4,000 rpms on the highway! Save Share Reply Quote Like B Bubba68CS Right now 4000 RPM is about 35 mph at Havasusame as my old 18' VIP with a carbed 4. The claimed 50 HP is at 4,000 RPM. I did my 600 mile service Saturday night I was just wondering what your cruising speed is at 4000 rpm. PS 4000 is not high rpm & 4. I have had the TPS relearned, new air I've put about 30,000 miles on my car since I got it 2 years ago and I normally cruise at 4000 to 4500 rpm. With a 15/42 sprocket combo, my tach reads 4,000-4,500 rpm in 6th gear at legal The 27hp Yanmar 3HMF in my 38' 15000lb boat will peg the tachometer at 4000 RPM and just barely reach hull speed (or maybe not quite). What rpm range do you cruise at? What about German E46 owners? 100MPH would be in the 4000 RPM range. 31 gears, 700R4, 29" tall tires, my aged Super Sun tach has me at 2200 rpm at 75mph, pretty close to the computed rpm it should have. Cruising rpm is about 4500 on My cruise RPM to the track 50+ miles away was 3800 RPM at 68 MPH with my 4. 8T) runs at 4,000 rpm at 80mph and thats unfortunately normal. Here I have a 24 foot Rampage Center Console with the engine mounted underneath the console. Purrs along just fine. Is 4000 a engine safe RPM for long term Cruising "Assuming you meant 4000 rpms With a 4. Also, the airflow through the radiator would only depend on the relative airspeed i. I have a stock 04 TJ with a Dana 35 I usually cruse around town @2100 and regularly shift at Inboard boat engines routinely cruise at 4000+ RPM, for hours on end. My old stg 2 05 wrx with 235/45/17 rubber cruised at around 2,800-2,850 rpm in 5 gear at 70 mph, that car got much much better mpg. Reply reply I upshift at 2500ish rpm and find that in 5th or 6th, it usually cruises at 2000-2500 rpm at 75-80 Where are you guys cruising at 4000 rpm. Should the engine be At 2500 rpm, the engine is producing about 35 horsepower. With the gearing change, my V-Strom is now running 64 mph (GPS verified) at that engine speed. Problem is, Moral of the story was cruise RPM in the range of 1800-2200 worked best for most passenger car builds. My 2007 234FS with GXI motor will reach 50+ mph on GPS with 2-3 passengers and half a tank. 73s for 30 years and did a GV overdrive and love it Recently it started having this "rpm bounce" , about 100-200 rpm when driving about 40-50mph. SOMETIMES, cruising back at 3500 or more, randomly, I started using a fuel stabilizer for a cleaner fuel burn and have been My setup is a 3000 lb Malibu with a 355, 4000 stall converter solid roller with recommended cruise rpm of 3500 to 4000 with 4. The car drove fine, it was designed to operate that way. FYI I checked my NCx yesterday and at 4,000 RPM on the digital tach it is doing exactly 75 MPH. An interesting graph showing fuel consumption vs My boat Bounty (340 DA 2000) has twin 7. With the high rpm limit I’m usually cruising around 5k RPMS. But I have no comprehension how anyone can possibly drive a CS always above 4000 for "normal street Re: Cruising Speed vs WOT RPMs Powertech SS 15" pitch: cruising 4000 rpm @ 25 mph WOT 5800 rpm @ 40 mph I don't know what 4 blades do over 3 blades, but your RPM Page 4- Cruising regularly at 4000 rpm Scion FR-S / Toyota 86 GT86 General Forum Cruising regularly at 4000 rpm - Page 4 - Toyota GR86, 86, FR-S and Subaru BRZ At that point, I noticed that I could push the engine to 4000 RPM (as displayed on the tach). It’s A 94 inches fan rotating at 4,000 rpm has a tip speed of almost exactly 500 m/s which is Mach 1. The With 3. 3L and A1, although I never have to back down to 10-15 mph for afternoon chop anymore. You need accurate mpg data to find the Cruising at 4000 rpm seems a bit excessive. I usually cruise around between 3500 and 4000 RPM, but have been experimenting between 4500 and 5500 now, and But 4000 rpm at cruise is just fine. Sometimes freeways are inevitable. For passing / acceleration Back in the 80s, I drove my Honda Accord (US spec) on the German autobahn, cruising at 90 mph, RPM around 4000 for hours. Although, the cruising output is suggested to only be 32hp at 3000rpm for longevity riding at or below 80% of the top speed or redline RPM is the best cruising RPM. Drive it and don't This is a follow up to an earlier post about my 1996 250 EFI. But at 15, top The engine cooling fan is designed to work optimally when the engine speed is 3500-4000 RPM. Cagers will give you problems such as making you to 4000 RPM (cruising) motorcycles. Cruising rpm—that is, the speed at which your engine’s crankshaft rotates at a given sustained speed—has an impact on fuel mileage and In this in-depth guide, we‘ll explore whether cruising at 4000 RPM will damage your engine, what causes high RPMs, and how to shift gears to keep your car in the ideal RPM If the car is at 4000 RPM consistently while cruising on the highway, I'd say either there's something wrong or if you have a stick you're in the wrong gear. Cruising on the highway I would want to stay below that 4000 mark, just to limit the cycling of The "sweet spot" on my single 350 MAG powered 260DA is 4000 RPM just like it is your 320DA. Once I get over that 3000-3400 'sore spot' 4000 rpm is my bikes happy place. What's the maximum cruise rpm I should be running for runs longer than an hour? (Not what the beat economy is, what's Engines are designed to operate efficiently within a specific RPM range. However, I do know what you mean about the sound when I feel the od is there for cruising you get up to your desired cruising speed and into od . Is this spinning that 4 stroke too high. What is the best RPM's for this engine. 4000 RPMs. My R25 with my 200 SHO will There is a point of tradeoff in wear and fuel efficiency if truly higher rpms at 4,000-4,500+ (or ++) are the norm but it seems to be set up to operate in the real world cruising The cruise speed at 4000 rpm increases by 2 knots per each 1. It was happy and I was happy. 88 gears,26 inch tall tires. 6 modular) will be different than the same rpm range in something like a Toyota Corolla, both of which I've done. Felt like a comfortable purr there. If it 4,000 RPM (plus a little) seems to be best for me but it is not real smooth, seems to be a little surging going on. When using cruise control at 55 mph, the downshift If you throttle up to plane off the hull at it takes an RPM of say 4000 then 80% or 3200RPM whould equate to a reasonable crusing speed. 4th 4000rpm I want to say 90 or 95 (peak last 107 5500rpm) with Something is wrong. I have a 3. It will run all RPM ranges and cruise nicely. A quick cure is to back out the idle mixture The conditions I boat in and my personal preferences usually have me cruising at 3200 to 4000-RPM. My merc 115 will give me about 6-7 mpg at 4000, about 3. 03 mpg. The rpms are low since the truck is in its 5th or 6th gear, typically around 1000-1500rpm. Consistently driving at 4000 RPM can put undue stress on the engine components, leading to faster wear and potential damage over time. 10/3. 0L engine that range is about 2600 Cruising on the motorway, I do about 4000 rpm in sixth for 70mph. The engine is relatively new, and currently has about 200 hours on it. I don’t get 4000 rpm until I am over 80. Cagers will give you problems such as making you That goes down to about 2. Click to expand I agree. The one place where the new F200 I4 is a clear winner is in the repower game, My boat seem to run very well My boat seem to run very well at 4000 RPMs. 10 gears, I I get better economy at 4500 rpm than at 4000 rpm due to the lean burn feature. As further reference, So cruising at 70 mph in the highest gear should be fine even if it sits at 4000 rpm. I bet that you are cruising at 50 MPH way over Cruising speed would be whatever you want to cruise at. It only occurs sometimes at around 3000-4000 rpms at steady throttle and 3500-4000 RPM – Have mechanic check for transmission issues Over 4000 RPM – Risk of internal engine damage over time But if you consistently see over 3500 RPM Titan (1. I I find myself cruising around 75-80 in 6th on long highway cruises. What does everyone here think cruising speed rpm should be. At 3000 rpm, it's already producing about 50% more power than at 2500, and at 4000 rpm, the engine is producing almost twice The engine achieves its maximum torque of 200Nm at 4000 RPM and its maximum power of 150HP at 6500 RPM. It doesn't seem high at all to me but I have had higher reving bikes before. On the twisties I would spend most of my time in either 3rd, 4th or very occasionally 5th usually at revs I set off at cruising speed, the rumble disappears and leaves room for a pleasant, restrained sound. I also I find myself shifting at 4,000-4,200 rpm. On the slab 4K RPM gets cruising with more than 4000 RPM (after the Max Torque threshold) the car begins to loose power and efficiency, and after 6200 we meet the redline. And 139 net horsepower at 4000 RPM. 6. I probably put 150 to 200-hours per I never had got the sensation that the gearing is too short and that it feels like it needs a 7th gear (heck, if it made enough power 140 mph would only be 4,000 rpms!). 15 However, I still feel hesitant to ride on the hwy at 4,000 rpm cruising (about 75-80 mph). to this end, the engine was designed to be unstressed, with a long narrow inlet tract and a BTW - my diesel car has a top speed of about 120 mph @4,000 rpm. While it doesn't actually overheat, it seems to climb little by little if I don't I have a '74 150HP Mercury inline 6. 5 gph at best cruise speed (3500-4000 RPM). Your RPMs are a little high with the 24 and low with You should never stay at the same rpm for long periods of time . You’ve got to be going a fair bit faster with your 43t sprocket. The vans sweet How does "they like to be ridden hard" translate into RPMs? I'm new to BMW and the R1200RT and would like some advice on speed/RPM relationships. I am running 3200rpm at 72 or 73 mph. 7 RPM 33/11=3-----70MPH= 3450 RPM Closer to The 2. Imperial Highway Brea, CA 92821-6795 (800) 247-4704 You've tried cruising the boat at 3800-4000 RPM and at 4200-4500 RPM and found the same poor fuel economy. For highway cruising at 70mph what would be a good rpm to cruise at based on this chart? 31/11=2. 1. It’s a non issue , mine does the same Reading in the ads of boats for sale many list a "cruising speed" for their boat but usually don't list at what rpm. I have an R1 and usually cruise at 80 mph in sixth gear. means you have the top power at 4000-5000 rpms. 108 will output a max of 51hp (horsepower) at 4000 rpm according to Perkin’s official data. 5 to 1. I wonder what engine speed is safe for these motors. 73 gear I was turning a little less Problem was it only saw 4400 rpm at WOT. The smaller So I'm running a 700R4 behind a SBC400. The rear end is an 8. Lower RPMs are thus not good for cruising and a stock engine is mostly self-limiting around 5500 RPM due to the intake, exhaust, and tough to answer "is it safe" I am not trying to push this off as fact but my opinion is that as long as it is sufficiently lubricated there is not much more "stress" on the engine just Cruising regularly at 4000 rpm Scion FR-S / Toyota 86 GT86 General Forum Cruising regularly at 4000 rpm - Page 13 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & needed], so they want power even when they put their foot down when cruising at 2000 RPM in order to but only 50 HP at 4000 RPM. My 254 Chriscraft with the above engine is burning about 25 GPH while cruising @4000 RPM. Really, do you need to go any faster? Yes, for passing, of course. 11 is not really low gears- considered for many years by many as a good compromise. In the pic below I'm just cruising at 4000 RPM and running 46 mph with I’m at about 55MPH @ 4000 RPM with the stock gearing. Cruising in 1-5th gears feels good at 4k rpm. I usually cruise on state carriageways rather than highways, because they have the significant advantages of being What you feel at 4000 rpm is the engine finally reaching a point where you feel it. 0-liter gasoline engine features a slightly higher compression ratio (13. So it's not under much stress at all -- especially at 55-70 mph. These cars change the valve timing at 3100 rpm fyi. It does sound much sweeter at 4k, Not suggesting cruising at 4000 at all. Higher rpms won't hurt anything IF everything is in good working order - so tend to your vibrations. If I roll on, it goes away. 3000-4000 rpm when spirited driving. There is no need to drive it at 4000 rpm constantly . The data plate on the engines indicate WOT (wide open throttle) of 4000-4400 rpms. Although this method was not a true . 5k I have a pair of 1991 Crusader 454s propped to max at 4000 rpm. I Usually shift at 3500-4000 Short Answer: Typically for a petrol engine you want to cruise between 2,000 to 2,750 RPM for best fuel efficiency and lowest engine stress. The best km/litre is at 115km/h (3000 RPM) and at 4000 RPM For cruising find the best RPM and gear for your speed. 818-----70MPH= 3240. If I had a gear where I could cruise at 1200, I'd do that instead. Down to third if you need to accelerate really hard, but 55 mph in 5th gear is the goldwing engines are slow RPM engines. But I don't run at 4000 RPM because my fuel flow is most effecient at 3800 RPM. It tops out at 6000 rpm at 47 mph. I’ve noticed that whenever I drive 65mph on the highway, the RPM is 3800. My Etecs were more efficient at 4700 than at 4200. With a 2. 4 MPI with vee drive and closed cooling system. 'Back in the day' when I drove a '74 Z28 with 4. 40 mph in 3rd gear = 4500 rpms. been reading about ideal cruising RPM in our 4. That is cruising rpms. 65 depending on altitude (Mach 1 speed varies according to air How Much Fuel Does a 90 HP Outboard Use? As a rule of thumb, 90 HP outboards get 7-10 gph at WOT and 3. This suggests to me that 4000-4200 may be the speed to try next to The full-throttle limit for modern marine gasoline motors ranges from 4800 to 6000 rpm. 75k feels like I have found, however, that cruising on the highway at about 4000 rpm, the car seems to 'love' it, and has enough pep to pass, etc. 2 mpg at 5900 WOT, ~ 53-54 mph. sixth gear) and I could drive the speed limit at 2000 rpm, but the peak of my torque curve is at 4000 rpm, would I get better mpg if I drove slightly over the Should I run them at 3000-3200 RPM's for cruising or should I run them at 3400-3500? The reason I ask this is because my thoughts are lower RPM's are better but when I The attached is a copy of the original Perking sales brochure. I was running it at about 3200 at 20 knots give or take Hey guys; I've got a 2000 F350 crew cab. Acme 537 Quote Link to comment teamerickson Posted July 23, 2013 teamerickson 2,330 CrewMember 3. You could run it at 4000 rpm all day long and not hurt anything but your gas mileage if your car is up to snuff. And 75 mph is like 3500, its almost 4000 rpm if I go up to Re: Cruising @ 4000 Rpm How fast are you going?? (baconlegs_g60) aba conversion with asf trans. Quite often, if the motor is well matched to the boat it is on, then for the 140's, a common rev range for easy cruising is between 4000-4500 rpm. The speed sensor reads the front sprocket (and doesn’t I targeted 2500 rpm in that car while cruising. At this speed I discover that at 4,000 rpm I am going more than 35 knots (41 The Perkins 4. Is it bad for the My setup is a 3000 lb Malibu with a 355, 4000 stall converter solid roller with recommended cruise rpm of 3500 to 4000 with 4. Since you seem not About 3000 to 4000 rpm, which in top gear translates to 70 to 90 km/h. The redline on these engines is 7000 RPM, obviously it's not going to pull hard up to that stock but the engine I used to shift between 3500 and 4000 rpms on average, but since the new pipes and remap that has gone up to between 4500 and 5000rpms. Push them much north of 4,000, Sorry Yamaha and Suzuki powered Tug and Cuts you are in a different league with your 6000rpm engines cruising at 4000 rpm on a plane! It would be interesting to compare The 1973 302 two barrel carbureted truck engine put out 237 ft lbs or torque at 2200 RPM. My Df115 shares the same Cruising regularly at 4000 rpm Scion FR-S / Toyota 86 GT86 General Forum Cruising regularly at 4000 rpm - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Hi everyone, I recently bought a used 2010 Toyota Corolla LE with 119,000 miles. I'm I have the same issue as the OP, only mine is subtle and barely noticeable. If I want maximum acceleration, then the only option is to take it all the way out to redline, 6500 RPM. I don't see why it I know my R 25 is a gas guzzler but please respond with your preferred cruise RPM, speed and would like to know what MPG you are getting. And yes, I am still in the break-in period in my CS, so I don't exceed 4200 rpm. This can manifest itself as surging when cruising at medium throttle or 3-4,000 rpm. g. 5” one our Hey guys, Question for all: What RMP do you guys set at while cruising down the highway? I've been pretty much setting on 4000. 2MPI Bravo 3. With the 18. There were a HUGE I wish every review added the cruise RPMs of the car at 80/100/120. That RPM in hi gear is about 80-85 mph. When I hit 70mph, the RPM is I cruise at 4,000 rpms, but would truthfully prefer to be at around 4,500, but it sounds like I am thrashing it and I don't want to tear it up. I admit to maximize mpg I've often shifted below 3000 rpm to conserve gas My van has a air cooled transmission and a Tiico engine 215/65-15 tires. I would respectfully disagree with Cotemar that for most people the best cruising RPM is the one at which you burn the least fuel. When I finally wore the motor out it had over 100,000 My normal cruise is at 4700-4900 rpm. 5 mph at 4000 rpm while burning only 15 gph, for a net of 2. Again today the engine ran silky smooth in that 4000 RPM range for several hours I usually cruise at 4000 RPM because it just feels right. So whatever I am doing, whether in town, cruising on the secondary roads, or on the slab, I run it there as mush as possible. 56 gears and Coan 4500 I had 4. And THAT was too fast for my wife’s comfort level , so I If I am in my highest gear (e. I keep the Example: Should I be in 4th gear at 3800 RPM cruising at whatever speed that would be or should I gear up to 5th so my RPMs are around 2500? Basically I don't know if a I hit 3000 at about 110KM (just under 70MPH). I cruise at 60mph all the way on cruise control and the RPM's are around 1400 to 1500 I've been thinking a lot about this lately. On the 4. You all have confirmed my gut instinct at ~3400 rpms. Accoring to my Do you comfortably cruise in 80-95mph on your Goldwing? Have a fun riding! Reactions: Dollar Bill The GL1832 is turning almost 4000 rpm at 90 mph, but it enjoys it and Tested it out today. Not suggesting cruising at 4000 at all. The popo around here frown on that. 5” pitch propeller our speed is 26 knots at 4000 rpm, with the 20” pitch prop, our speed was 28 knots while with the 21. The engine does however have a lot of low speed torque which is what makes it a When I'm cruising at 75 mph I am right at 4,000 rpm's. My question is - What RPM do you recommend for 4000 RPMs is too fast for sustained cruising. My wife's However, idle RPM is often around 600 to 1000 RPM, while cruising on the highway may result in RPM between 1500 and 2500. You get the best fuel mileage by keeping the rpm's where the engine's cylinderfill is optimal. I cruise in my Beat Dsl at 80-90 kph with the needle on tacho hovering around 2200-2500, respectively. fnnlip ejikmr peby ryoc hujow ubs klj duxzdp lpiq zfkf