Realistic MPG in 300D's, 300SD's, 190 D's? - Page 4 - PeachParts Mercedes-Benz Forum

ROLLGUY · #1 06-17-2010, 01:00 AM

Quote:

Originally Posted by DieselPaul

Hows the '603 with no turbo?

I went exactly 600 miles on my 95 E300 the first tank after acquiring it and put in exactly 20 gallons. That's 30 MPG. Needless to say, I was impressed!
The car has LOTS of power for a non turbo (kinda like a gasser), and is very economical. The other 5 cyl's have gotten from 22-25 average every time I have checked. It cracks me up every time I see an ad on CL for a 617 powered car "gets 30 mpg". That is what the gal told me that I got the E300 from, and now I believe her. 30 MPG on a 617 turbo car? I think not...

ROLLGUY · #2 06-17-2010, 01:16 AM

oh yes, I forgot about the 190 2.2 It gets between 30-36 every time I have checked. This car should not be measured by miles per gallon, it should be measured by miles per gallon per hour! (if that makes any sense). What I mean to say is, it takes hours to get up to speed to get MPG!. I have always said: "it may not be very fast, but it sure is slow!"

Hip001 · #3 07-04-2013, 09:14 PM

1986 300sdl I could get 30, 1984 & 1985 300d's mid 20's at best, 1982 240d 4speed I can hit 30mpg pretty regular.

Mölyapina · #4 07-04-2013, 09:20 PM

Quote:

Originally Posted by Hip001

1986 300sdl I could get 30, 1984 & 1985 300d's mid 20's at best, 1982 240d 4speed I can hit 30mpg pretty regular.

Dude! I found your stapler!

Crazy_Nate · #5 06-17-2010, 08:34 AM

Quote:

Originally Posted by ROLLGUY

I went exactly 600 miles on my 95 E300 the first tank after acquiring it and put in exactly 20 gallons. That's 30 MPG. Needless to say, I was impressed!
The car has LOTS of power for a non turbo (kinda like a gasser), and is very economical. The other 5 cyl's have gotten from 22-25 average every time I have checked. It cracks me up every time I see an ad on CL for a 617 powered car "gets 30 mpg". That is what the gal told me that I got the E300 from, and now I believe her. 30 MPG on a 617 turbo car? I think not...

Yep, later engines just get better mileage if they're in good shape.

My '87 300D gets better mileage than my 240D did (not trying hard, either). I barely managed 32 in the 240D on 100% highway @60 mph, but it was really difficult to duplicate.

kinghais · #6 10-09-2010, 03:00 PM

I get about 32-35 Combined city n highway. On te highway I go about 60mph, 2,500 rpmn I get about 42 mpg, but if I go about 75-80 mph the rpm goes up to 3,000 n engine gets a little loud, is that something I should worry about ???
Does it hurt my engine???
I'm trying to just to keep the rpm about 2500 n no more.

gastropodus · #7 10-09-2010, 07:45 PM

My 1986 190D has only had a few tankfuls run through it, but the combined city/highway mpg is 34.5 miles per gallon. It's a 2.5 liter normally aspirated engine, with a 5 speed transmission.

Kurt

babymog · #8 06-16-2010, 10:23 PM

My '87 190D 2.5 Turbo would regularly return 34-36mpg higway. One trip I babied it at 55-60 on 2-lane highways, averaged 42.5mpg round trip. Great little cars. This one was in excellent tune.

In '87 300Ds I'm usually hard-pressed to break into the 30s, needs to be straight highway to get above 28-29mpg but I haven't yet had one that didn't leak a little at the DVs nor one that had recent injectors or pump work, recent timing chain, etc. All were with over 250,000 miles and needing a tune. Current '87 TD(T) hasn't really had any trials, gets pretty good mileage on a trailer. With 225 rubber it won't be a mileage king, nor with the extra weight and drag of the wagon body. I'm hoping for 29-30 at 73mph when it's finished and running perfectly. Timing, injectors, and IP imperfections will affect the mileage as will brakes and tires.

My E320s on the other hand, same body, same gearing, return 25-27mpg highway, on premium gasoline (same price as diesel here) ahd have an extra 90hp.

s38junkie · #9 06-16-2010, 10:33 PM

Quote:

Originally Posted by babymog

My E320s on the other hand, same body, same gearing, return 25-27mpg highway, on premium gasoline (same price as diesel here) ahd have an extra 90hp.

Interesting comparison you make to your gasser. My 1997 BMW M3 slushbox (yes, they made "M" cars with automatics, if that's what you want to call it) will return 30MPG on highway trips and offers 240HP (premium fuel is a must). That said, it's not hard to dip into the high to mid-teens doing all city driving, whereas my diesel refuses to give anything less than 27MPG.

It seems like the ideal set-up would be to use your gasser for highway trips and your diesel cars for city driving, where diesel engines are more forgiving with stop-and-go driving.

DieselPaul · #10 06-16-2010, 10:33 PM

Cool, thanks for your answer. I don't want to go too far off topic for the sake of the OP haha. I may PM you later.

tbomachines · #11 06-17-2010, 01:26 AM

In my 300SD my best was 33mpg on the highway. City driving (and I live on a massive hill) it goes down to low teens. It seems I have a knack for getting decent mileage though, pulled 30.7mpg in my 300e this weekend.

Quirky Mercy · #12 10-09-2010, 11:38 PM

84' 300 SD 22-26 mpg 187K on the clock unknown on doner engine.

jbach36 · #13 10-11-2010, 04:17 AM

I get about 30 mpg around town, 35-36 hwy.

With a/c on, I get about 26 mpg around town.

1991 300d, 152k

weird beard · #14 10-11-2010, 07:42 AM

1986 190D 2.5 na 380,000km 7 L/100km 33.5mpg combined but climb a massive hill every day on the hyway. taking it easy in town. Revs low, speed slow. only really measured one tank though. 100% diesel. Sometimes run diesel wvo mix, mpg drops off a bit. Not measured, just notice less fuel remaining at the end of the week.

anyone got any readings on MPG running 100% WVO?

bustedbenz · #15 10-11-2010, 10:20 AM

My 300SDL gives about 24.5-26.0 mpg no matter how or where I drive it. The 240D frequently comes up with exactly the same range. If anything, the 240 is only 1 mpg (avg) higher. It's really a trivial difference.

I admit I drive like I robbed a bank most of the time. That plays into it.