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- Audi Q5 Gasoline Recommendations<br>Important information to help you understand your Audi Q5.
Premium Gasoline Required?
#1
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.
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.
#2
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.
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.
#3
AudiWorld Senior Member
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.
#4
AudiWorld Senior Member
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.
#5
AudiWorld Super User
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.
#6
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.
#7
AudiWorld Super User
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#9
AudiWorld Senior Member
Because I don't see a difference in performance or fuel economy, and I don't really care. I lease my cars and get new ones every 1-2 years, so I'm not worried about long term, if it even has an effect. The $$ is not the point. I just don't see a use for it. The only thing I do care about, if the brand. I only use Shell or Chevron.
#10
AudiWorld Super User
You dont think that constant slight knocking and retardation of timing will hurt an engine over time? This cycle happens over and over again when using the low octane gas. At the very least, timing retartdation will create a incomplete burn cycle, this will cause carbon build up, especially in direct injection engines.