Premium Gasoline Required?
Is premium gasoline a requirement or a suggestion for the Q5?
Will I harm my engine or cause "knocking" if I use lower grade gasoline? Has anyone driven their Q5 with lower grade gasoline and not experienced any problems? I know someone who has used only 87 octane gasoline for their A4 and has had no problems whatsoever. |
Originally Posted by NMW1982
(Post 24046235)
Is premium gasoline a requirement or a suggestion for the Q5?
Will I harm my engine or cause "knocking" if I use lower grade gasoline? Has anyone driven their Q5 with lower grade gasoline and not experienced any problems? I know someone who has used only 87 octane gasoline for their A4 and has had no problems whatsoever. |
On my first Q5, I used premium and then switched to middle. Never noticed a difference, even on fuel economy. And what you would save in fuel economy by using premium, you would spend in the difference in price. Negligible difference. I've only used middle grade on my '10 Q5, and it's been completely fine.
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Audi recommends 91 and up. You can use 87 with reduced engine performance. Anything below that and Audi says you can wreck your engine. A manufacturer recommends something for a reason and I dont' think Audi is in bed with the oil companies. In a 40K+ car, I don't see the point of trying to save a buck by going with a lower grade but to each his own.
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Originally Posted by FitzLA
(Post 24046277)
On my first Q5, I used premium and then switched to middle. Never noticed a difference, even on fuel economy. And what you would save in fuel economy by using premium, you would spend in the difference in price. Negligible difference. I've only used middle grade on my '10 Q5, and it's been completely fine.
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all modern vehicles have knock sensors that will pull timing to compensate for lower grade fuels. Running 87 will NOT ruin your engine. What it will do is reduce peak power output and reduce gas mileage.
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Exactly.
Originally Posted by rs4-380
(Post 24046470)
all modern vehicles have knock sensors that will pull timing to compensate for lower grade fuels. Running 87 will NOT ruin your engine. What it will do is reduce peak power output and reduce gas mileage.
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I have used 91 all the time.
What is this fuel price drama? You guys buy 40k car, complain about few pennies and barely drive the car anyways... :D |
Originally Posted by The G Man
(Post 24046460)
I dont understand why people use mid grade, its only 10 cents difference, you only save a $1.50 on a fill up.
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Originally Posted by rs4-380
(Post 24046470)
all modern vehicles have knock sensors that will pull timing to compensate for lower grade fuels. Running 87 will NOT ruin your engine. What it will do is reduce peak power output and reduce gas mileage.
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