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Old 10-09-2009, 08:08 AM
d geek d geek is offline
diesel evangelist
Location: Austin, TX, USA
Join Date: Nov 2008
Posts: 2,326
Mein Auto: Volvo V60+ Volvo S80
Originally Posted by Craig B View Post
It says on the gas cap not to use any additives, so if I were you, I wouldn't want to void my warranty. I run premium diesel fuel and don't have any problems...

the manual does allow use of up to 5% biodiesel. I would use this for improved lubricity.
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