What's your RPM cruising at top gear at 70mph?

[markjay]

Mine is 2,500 - which I believe is normal for this engine/gearbox but I still think is slightly high - probably the result of having a four-cylinder 180K rather than a torquey V6 or a diesel.

 

[trapperjohn]

My 94 and 95 300Ds 124s sit at around 3000 the 24v D slightly less than the 12v's.

All four speed boxes BTW.

 

[Pigpen]

Just below 3000rpm in mine.

 

[jepho]

Mine shows an an indicated 2200 at 70mph

 

[Shude]

2100 for the CLK55 AMG

 

[Mr E]

About 2200 on mine...

80 has both dials pointing straight up, and that 2500, so 2200 for 70 is about right for it.

 

[Benzowner]

Not had the car too long, but I am sure on motorways with cruise on it was below 2000rpm

 

[Mactech]

Wood burners all, but the CLS reads 1750rpm at 70mph and the prevoius S Class on 21" rear wheels was just above idle at 1600rpm!
The ML has to push something akin to a town hall through the air, so that is at about 2000rpm.....all with the 320 CDI V6 same engine.

 

[corned]

Late I6 E320CDI S211 almost bang on 2000 @ 70mph.

I understand from somewhere (can't for the life of me remember where now) that the estates got a slightly shorter final drive than the saloons. Pity as the 320 wood-burner could easily pull a longer FD unit. Particular since the remap... :bannana:

 

[Deleted member 11979]

About 1700 - 1800 on our Volvo XC70, 2500 on our Volvo C30 1.6 diesel

 

[crockers]

Just set speedtronic to 70 and it's 1700 rpm. 2000 rpm is a tad over 80 (allegedly)

 

[Mr Nicey]

2200

 

[Melk63]

Bang on 2000 at 70 in the CL600 v12. Standard 19" wheels.
Mel.

 

[gIzzE]

Late I6 E320CDI S211 almost bang on 2000 @ 70mph.

I understand from somewhere (can't for the life of me remember where now) that the estates got a slightly shorter final drive than the saloons. Pity as the 320 wood-burner could easily pull a longer FD unit. Particular since the remap... :bannana:

That's interesting, you're right, the saloon has a 2.45 final drive and the estate has a 2.65 final drive.


E320 cdi saloon...

Transmission 7 speed automatic
Top gear ratio 0.73
Final drive ratio 2.47


E320 cdi Estate....

Transmission 7 speed automatic
Top gear ratio 0.73
Final drive ratio 2.65



The E280cdi has a 3.27 final drive.....

Transmission 7 speed automatic
Top gear ratio 0.73
Final drive ratio 3.27


I get 42mpg at 70mph but only 38mpg at 75mph, if I swapped the rear diff over for one from a saloon I could sit at my preferred 75mph and get 40+ mpg.

 

[JasM]

My 202 shows exactly 3000 rpm at 70.

 

[jefrs]

Your C180k has similar power output to my old 2.3L 4cyl Volvo 245 and that would cruise at 2,500 - 3,000 all day. My E320 S210 cruises at 1,500 - 2,000. Both would go quicker but I'm refering to a lazy motorway cruise. Thing is, the slush box is not a fixed ratio. The E320 returns better mpg...

 

[renault12ts]

Your C180k has similar power output to my old 2.3L 4cyl Volvo 245 and that would cruise at 2,500 - 3,000 all day. My E320 S210 cruises at 1,500 - 2,000. Both would go quicker but I'm refering to a lazy motorway cruise. Thing is, the slush box is not a fixed ratio. The E320 returns better mpg...

The slush box does lock up though and is then fixed...surely?

 

[mattc]

in the Golf about 1500 RPM in 6th

in the 320 about 2700 in5th.

ask me which I prefer to drive. The near 30th year old Merc design is everything the Golf is not (except frugal!)

 

[artyman]

2200 in mine

 

[Dryce]

Mine is 2,500 - which I believe is normal for this engine/gearbox but I still think is slightly high - probably the result of having a four-cylinder 180K rather than a torquey V6 or a diesel.

About 2400 in SWMBO's SLK230.

Just below 3000 in my E240. And despite the higher revs a lot more relaxed than the SLK. The V6 is discrete rather than torquey in this setup.