How do I increase mileage
I added BG44
Mileage got worse
18 hiway
14 road
Jul 27, 2010 at 6:23 AM
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JACOBANDNICKOLAS
✓Experienced Mechanic
110,248 POSTS
Well, normally I would say start with a good tune up. However, does the engine have 300K on it? If that is the case, poor mileage could be the result of low engine compression due to mileage and wear.