Gas price keep going up, is it 5series must use 91
03-31-2004, 12:58 PM
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hi,
I usually drive a lot of mile for a month. My gas cost from avg. from around $280/mo to $325/mo. almost $50 difference.
is it 5 series must use 91? what happen to my engine if i don't use 91?
any idea? suggestion?
nick
I usually drive a lot of mile for a month. My gas cost from avg. from around $280/mo to $325/mo. almost $50 difference.
is it 5 series must use 91? what happen to my engine if i don't use 91?
any idea? suggestion?
nick
03-31-2004, 01:08 PM
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Nick-
You're in CA so I'm not sure of the cent differential between octanes but if you paid $50,000+ for a car I wouldn't skimp on what you put into the tank. The extra cost per year might end up saving you repair bills down the road not to mention the performance issues (assumed?) between regular unleaded vs. premium.
You're in CA so I'm not sure of the cent differential between octanes but if you paid $50,000+ for a car I wouldn't skimp on what you put into the tank. The extra cost per year might end up saving you repair bills down the road not to mention the performance issues (assumed?) between regular unleaded vs. premium.
03-31-2004, 02:06 PM
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Unless the difference in price is enormeous - always tank premium. It is likely to increase performance and decrease consumption. BMW engines are equipped with a self-adjusting anti-knock sensor, and running the engine on a low but acceptable octane grade fuel shouldn't pose a big problem (hence acceptable - aren't there some specifications listed in the US manual?).
-paasan
-paasan
03-31-2004, 02:24 PM
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What five do you have?
For the 545i, the dealer recommended premium as anything less would lessen drive comfort and performance.
For my e34 525i, I use premium as well, even though regular unleaded would suit it fine.
For the 545i, the dealer recommended premium as anything less would lessen drive comfort and performance.
For my e34 525i, I use premium as well, even though regular unleaded would suit it fine.
03-31-2004, 02:27 PM
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Maybe start visiting your local costco for gas. Their gas should be fine, but I find the long lines to be the deterrent. Though early morning or late evening, there doesn't seem to be much of a line.
04-01-2004, 12:47 AM
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Yep, here's my suggestion. Come and have a driving holiday here in England, where your gas will cost you about $6.50 a gallon.
Then go home feeling happy again
Then go home feeling happy again
04-01-2004, 10:02 AM
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In most instances the E60 (and E39) will compensate for the lower octane in normal driving circumstances. It is very unlikely that you would have any engine damage.
I drove my former 540's to area of my state where higher ocatane was not available and never had any problems.
However, the gas mileage and performance (which I could not really feel) did drop.
When you consider the lower gas mileage you will not save much if anything.
I drove my former 540's to area of my state where higher ocatane was not available and never had any problems.
However, the gas mileage and performance (which I could not really feel) did drop.
When you consider the lower gas mileage you will not save much if anything.
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