TSI
Senior Member
- Joined
- Oct 5, 2018
- Threads
- 12
- Messages
- 139
- Reaction score
- 211
- Location
- MA
- Vehicle(s)
- 17 Civic Si
- Vehicle Showcase
- 1
I’ve had them on since Monday but this current drive on the way to work this morning about 20ish miles, I averaged 37.4 mpgHave you had them long enough to determine if you're losing gas mileage?
If so, approx. how much?
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