Semi with DEF for emissions
Posted: 30 September 2017 08:25 PM   [ Ignore ]
Total Posts:  20
Joined  2010-07-29

I drive Tractor trailer and it burns that DEF for emissions . If I put marvel in the diesel fuel only (I know not to put it in the DEF) will it affect the way The DEF system burn the emissions or will it have any negative effect on the DEF system


Mike L