Gas tank question, UrS4

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Gas tank question, UrS4

Postby TCombs » Sat Aug 11, 2018 8:01 pm

I have a quick question about our gas tanks on the C4 S cars. I don’t know if all C4 cars are the same but I have read several times that our gas tanks are 21 gallons. I have experienced this in the short time I had my first S4. I filled it once as it was almost empty when I bought it and got either 20 or 21 gallons. But when I bought my second one, I filled it and I was only able to get 16-17 gallons and that is with the car almost on “E”. I think it was like right on “E” when I bought it and got 17. I have only drove my car about three times in the last three weeks or so now, and when I filled it today, it was almost empty I only got about 16. Is there something maybe with my charcoal canister or anything maybe I could look into? The fuel gauge does rear full, sometimes less than a needle off from full. Just wondering if anyone else has experienced this or has some insight.
1994 Audi URS4 Emerald Green
2010 Audi A5 Meteor Gray
2006 Yamaha FZ6
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