BRONCO
Full Access Member
- Joined
- Mar 11, 2004
- Posts
- 235
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Diesel fuel additive I have ever used in my 03 Chevy Duramax. I have used Power Services, Longer diesel life, and a few others. Shell is the only one that improved my milage. Shell is the only one that made the ever to common precombustion rattle go away completly. I really think this stuff is the ticket.