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#1
04-25-2006, 03:06 AM
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1981 380sl 107
Greetings,
I am trying to figure out what folks are getting for gas mileage on these vehicles? I have done a full tune up, new tires, changed all fluid, filters, spark plugs and wires. What kind of mileage should I be getting intown and highway? What are you guys getting? 
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#3
04-25-2006, 09:39 AM
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Logically one would do better gas milage with top on and windows closed.
I have not really calculated what kind of gas millage I get with my 560sl but I have noticed significant differences when I am heavy on the pedal...
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#4
04-25-2006, 10:10 AM
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I get 15 mpg in my 450SL, which is fairly normal. You should not expect much more than this. These cars were not built with fuel economy in mind...
__________________
'01 SLK320, '79 450SL & '01 C320 -- What? 3 Mercedes? I am DEFINITELY crazy!!!
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#5
04-25-2006, 01:17 PM
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I get about 30 SMILES per gallon. Thats how I judge the ride!
__________________
http://www.benzypalooza.com/index.htm
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#7
04-25-2006, 01:55 PM
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Nobby is being ironic. You'll get used to him.
 He gets poor fuel economy, just like the rest of us.Anyway, where he lives, he's supposed to be figuring it in L/100km. 
__________________
'01 SLK320, '79 450SL & '01 C320 -- What? 3 Mercedes? I am DEFINITELY crazy!!!
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#8
04-25-2006, 05:43 PM
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better with 6
Hi
I had a similar query so when I had to go to London very early last week (5am start) I thought I'd do a check on MPG on the standard UK "95 octane 'Premium' grade unleaded petrol". I did the 240mile round trip (mainly motorways - for those in the UK M1 - A43 - M40 -M25 plus a few minor local roads ) avaraging about 68mph (max about 85mph) in my 88 300SL (6 cylinder, 3 litre, done 100+k miles) with the soft top on and windows closed. I used just under £44 of fuel @ 94.9p/litre (I had to fill up at the begining and did the same at the end in order to work out the consumption) this works out about 23MPG which I felt was about normal when cruising - with the foot down and the "economy gauge" in the red on winding roads (without speed cameras) I drop to less than 15MPG. I normaly feel that I average about 18MPG normal mixed motoring The engine is set up for good emission and runs well but there is a slight vibration in the rear wheels at 70 mph (going to the workshop later in the week) which will lower the MPG a bit. Hope this helps Cheers Jim
__________________
Keep your Motor runnin'  Jim's '88 300SL
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#10
04-26-2006, 02:11 AM
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petrol
Hi
Sorry I forget sometimes that we're two countries divided by the same language (and measurements) I meant Imperial Gallons, although it's sold in Litres nowadays, everyone still talks about Miles per Gallon (Imp.) in the UK (For info that is : 4.54 litres or 4 quarts or 8 pints or 160 fluid ounces) Cheers Jim
__________________
Keep your Motor runnin' Jim's '88 300SL
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#11
04-26-2006, 09:59 AM
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Hi there,
I have an '82 380SL that has a 560SL engine installed, and I drove from Vancouver, WA to Seattle, WA and back last week. Fairly flat road, around 80mph most of the way. I drove some city driving in Seattle, maybe 16 miles or so. Total miles traveled was 317, mpg was 19.2. I think that's pretty good mileage for the car. On the other hand, my '82 300D which I installed a GM 4.3L V6 with T700R4 trans. has achieved about 28mpg on the same trip at the same speeds several times. The 380SL is a lot more fun to drive! It had the hardtop on with the windows up... Regards,
__________________
Richard Wooldridge '01 ML320 '82 300D 4.3L V6/T700R4 conversion '82 380SL, '86 560SL engine/trans. installed '79 450SL, digital servo update '75 280C
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