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Re: 92 octaine is @ 2.07 using 87 any problems??
Posted by Brooks G (more from Brooks G) on Tue, 9 Mar 2004 10:26:07
In Reply to: 92 octaine is @ 2.07 using 87 any problems??, albanysaab, Tue, 9 Mar 2004 07:56:37
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There is a bit of false economy in using lower octane gas.
Personal experience: The wife's '79 Fiat X1/9 back in the '80s when she had a 40 mi. commute to work (each way) - Regular gas, 33.5 mpg, Premium 36.5 mpg. The car was tuned for each type of gas using the same ear drum method, when it was barely knocking, up a steep hill, the timing was deemed to be correct for each type of gas. This is something the ECU in a 9-5 does automatically. At the time, it was worth using premium because it got her 4 round trips to work where as regular got her 3, a significant cut in trips to the gas station but when I did the math, regular was a bit cheaper so I set it back to regular after her job relocated to a less than 5 mile commute.
Now the Fiat was not high compression and was designed for regular. On a car designed for premium, the difference in mileage between the two types of fuel may well be greater. So are you going to save money with 87 octane, yes almost certainly, but it won't be as much as the price difference indicates.
Brooks.
posted by 130.76.3...
Posts in this Thread:
- 92 octaine is @ 2.07 using 87 any problems??, albanysaab, Tue, 9 Mar 2004 07:56:37
- You have a V-6 - Yes, keeton, Tue, 9 Mar 2004 13:40:12
- I use 87 only. Get 32 mpg. 2.3LPT, 5 speed, 97K n/m, compaqted, Tue, 9 Mar 2004 11:29:25
- No problems, but performance and mileage hits, Rick D., Tue, 9 Mar 2004 10:40:50
- Re: 92 octaine is @ 2.07 using 87 any problems??, Brooks G, Tue, 9 Mar 2004 10:26:07 <-- Viewing This Message
- Re: 92 octaine is @ 2.07 using 87 any problems??, Razl, Tue, 9 Mar 2004 09:31:24
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