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What about fuel types & gas mileage?
297 messages, Last post on Jan 20, 2013 at 2:20 PM
You are in the Maintenance & Repair Forum.- Your Host is mr_shiftright
What is this discussion about? Engine, Fuel System
#295 of 297 Re: BMW X3 and "regular fuel" [elias] by Mr_Shiftright HOST
Jan 19, 2013 (8:31 am)
Replying to: elias (Jan 19, 2013 7:58 am)
yes but that's anecdotal, and anecdotes are not evidence. Stalling can be caused by so many factors that we have to be careful, if we wish to be good diagnosticians, --we have to be careful not to confuse causation with correlation. chances are pretty good that someone else with a similar problem will not find regular gas to be a solution.
I suppose it would be fair, at least at this point, to say that using regular gas does not "cure" cold start stalling in an X3, but that it may, under certain circumstances, alleviate it in certain cars?
The bench test with the big V-8 would be meaningless if the engine didn't have computer controls for timing I think, because all they had to do was set the timing to just short of the ping point on regular fuel---and then yeah, sure, using higher octane wouldn't matter much at all. There isn't any more "power" in high octane gas.
- elias (Jan 20, 2013 9:38 am)
Replies to this message:
#296 of 297 Re: BMW X3 and "regular fuel" [Mr_Shiftright] by elias
Jan 20, 2013 (9:38 am)
Replying to: Mr_Shiftright (Jan 19, 2013 8:31 am)
yeah... it was a racer-type magazine that tested those V8s, i'm sure they did not omit the knock sensors... pretty sure knock sensors are 'standard' on GM V8s for decades. anyway, "YMMV" !
speaking of BMWs and fuel types, I've been seeing so many X5d lately! must be nice to drive one of those ....
- Mr_Shiftright (Jan 20, 2013 2:20 pm)
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#297 of 297 Re: BMW X3 and "regular fuel" [elias] by Mr_Shiftright HOST
Jan 20, 2013 (2:20 pm)
Replying to: elias (Jan 20, 2013 9:38 am)
I think knock sensors came out in 1981 or so.
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