what kind of gas do you treat your benz to?
09-17-2007, 11:45 AM
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1995 E320 Cabriolet
what kind of gas do you treat your benz to?
regular, midgrade, or premium.
I always wondered what would happen if you put regular or midgrade.
i always use premium 91 octane here
I always wondered what would happen if you put regular or midgrade.
i always use premium 91 octane here
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09-17-2007, 07:38 PM
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2008 BMW 328i
09-17-2007, 07:50 PM
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2001 c320 - 2002 ml55 - 2011 c300 - 2014 slk350 - 2015 cla45
-carino...
as far as gas.... to be honest ive switched a few times between premium 91 octane and mid grade 87 octane... in both my c320 and e320. in all honesty i have not noticed much of a difference in mpg. each tank i also add a bottle of chevron fuel additive.
-carino
09-17-2007, 11:22 PM
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i use regular and about every 3rd tank or so i use premium. i run a bottle of chevron fuel injector cleaner every few months, about every 8th tank or so.
regular oil. my car is still consuming oil. i add a quart about once a month.
carino
id say that fuel system cleaner in each tank is a little bit over kill. but to each their own.
regular oil. my car is still consuming oil. i add a quart about once a month.
carino
id say that fuel system cleaner in each tank is a little bit over kill. but to each their own.
09-20-2007, 11:36 AM
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It changes all the time
In my 124s I use mid grade for local and flat land driving, buy use Chevron premium in the mountains or out on the super slab like between here and Vegas.
09-20-2007, 12:59 PM
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95 e320...sold the rest
i run regular now...can i just decide to switch to premium or something higher whenever without hurting the car?
Someone told me it wasnt good for it, but I don't think it matters..does it?
Someone told me it wasnt good for it, but I don't think it matters..does it?
09-20-2007, 03:19 PM
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300E a couple 1994 w124wagon E320 Wagon/,1971MGB Track/Rally, MG Midget Autocross ,2000 E320 wagon.
Sure
you can upgrade anytime,the extra cost will be made up by the better mpg.If the engine calls for premium,it will run better,you might not notice it,but under load low grade fuel is probably pinging and you dont even hear it.Funny thing,my brother has one of those toyota matrix,calls for regular,he filled it with high test and picked up 3mpg!so even a low compression motor at times responds to the octane jump.won't work in all cars so no reason to waste the money unless it shows an increase. The benz,most definitly.91 or better
09-20-2007, 09:58 PM
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1994 E320 Dragon Wagon
ohlord crowned the topic. Ping is the whole deal.
Pre-ignition, detonation, ping - same thing and very bad. Higher octane fuel has a slower burn envelope when ignited. The effect helps prevents ping or the fuel/air mix burning before the crank has advanced to the proper fire point. Premium is a must for any higher compression engine.
Basically, the low grade fuel explosion may occur early (fast burn) where downward force hammers the piston as it rises before it has reached the point in the stroke where it should go down. It makes a clattering sound usually under load like a hill or accelerating. Often mis-read as "valve noise".
Worth killing the engine? The new MINI Cooper requires premium. Posts on a fan site discuss destroying engines running cheap fuel. But they saved money.
Pre-ignition, detonation, ping - same thing and very bad. Higher octane fuel has a slower burn envelope when ignited. The effect helps prevents ping or the fuel/air mix burning before the crank has advanced to the proper fire point. Premium is a must for any higher compression engine.
Basically, the low grade fuel explosion may occur early (fast burn) where downward force hammers the piston as it rises before it has reached the point in the stroke where it should go down. It makes a clattering sound usually under load like a hill or accelerating. Often mis-read as "valve noise".
Worth killing the engine? The new MINI Cooper requires premium. Posts on a fan site discuss destroying engines running cheap fuel. But they saved money.
09-20-2007, 10:24 PM
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1986 300E
93 from shell, and keep injector cleaner in the trunk.
honestly, its actually saving money in the long run. 10 dollars extra on gas? or have to a buy a new car in a few years...
worse then buying that new car...
knowing you ruined an old mercs engine
honestly, its actually saving money in the long run. 10 dollars extra on gas? or have to a buy a new car in a few years...
worse then buying that new car...
knowing you ruined an old mercs engine
