Regular gas?
#1
Join Date: Nov 2004
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The truth is, I often hear that people get slightly better gas mileage from using premium in the cars, as designed.
If you assume that Premium is ~10% more expensive than regular gas (.30), and you get ~10% better mileage as a result, then the premium isn't really costing you any more. Plus, you've got more power when you need it (timing doesn't have to be retarded to prevent preignition) and you don't have to worry whether or not you could be hurting your car.
That's how I justify it anyway
If you assume that Premium is ~10% more expensive than regular gas (.30), and you get ~10% better mileage as a result, then the premium isn't really costing you any more. Plus, you've got more power when you need it (timing doesn't have to be retarded to prevent preignition) and you don't have to worry whether or not you could be hurting your car.
That's how I justify it anyway
#7
The truth is, I often hear that people get slightly better gas mileage from using premium in the cars, as designed.
If you assume that Premium is ~10% more expensive than regular gas (.30), and you get ~10% better mileage as a result, then the premium isn't really costing you any more. Plus, you've got more power when you need it (timing doesn't have to be retarded to prevent preignition) and you don't have to worry whether or not you could be hurting your car.
That's how I justify it anyway
If you assume that Premium is ~10% more expensive than regular gas (.30), and you get ~10% better mileage as a result, then the premium isn't really costing you any more. Plus, you've got more power when you need it (timing doesn't have to be retarded to prevent preignition) and you don't have to worry whether or not you could be hurting your car.
That's how I justify it anyway
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#13
Join Date: Nov 2007
Location: Lake Orion, Michigan, USA
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Do not run 87 octane in your Cooper, it'll run like crap. Really your are putting at the most 12 gallons in the car and that's if you area really empty. At $.20 more then regular, premium will cost you at most $2.40 more per fill up, that's nothing in the grand scheme of things. If money is that tight just skip a morning coffee or some other unneeded expense from your week.
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LaneCountyMini (07-27-2022)
#14
Do not run 87 octane in your Cooper, it'll run like crap. Really your are putting at the most 12 gallons in the car and that's if you area really empty. At $.20 more then regular, premium will cost you at most $2.40 more per fill up, that's nothing in the grand scheme of things. If money is that tight just skip a morning coffee or some other unneeded expense from your week.
#15
Join Date: Jun 2010
Location: Vancouver Island, Canada
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My manual says 87 is acceptable if I can't find 91+ but my gas cap says minimum 91. What I take from this is that my car probably won't burst into flames if I'm out of gas in the sticks and I need to fill up at Bob's Gasoline Shack with 87, but I always get 91 or 94, because it's only a few bucks and I feel better about it.
#17
Some interesting reading on the topic
http://www.consumerenergycenter.org/...s_premium.html
http://www.scientificamerican.com/ar...tion-premium-g
http://www.consumerenergycenter.org/...s_premium.html
http://www.scientificamerican.com/ar...tion-premium-g
#19
I put 93 octane in her, anyway...just curious if premium recommended is because its a "performance" engine, or the configuration, or....Mini is in cohoots with the oil companies
#20
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KitGerhart (04-09-2022)
#22