Originally Posted By SomeCarGuy
Originally Posted By fast68plymouth
Plenty of other choices if you're not comfortable with the Penn Grade stuff.

Driven
Red Line
Royal Purple
Torco
Champion
Lucas

To name a few


IIRC in the past you’ve mentioned guys running lower viscosity than 10w40 have had trouble in tear downs you’ve seen. Appears several here have mentioned 5w30. Could this be an issue and changing brands after an issue crops up isn’t going to solve it?


I've run some 5x30 Valvoline syn. or Mobile-1 syn. through my stuff a few times and no issues at tear downs but usually stick to a 10x30 w/.0025+ rod and .003+ mains street/strip mid 9 second car............... thumbs

Last edited by Thumperdart; 03/01/18 04:17 PM.
72 Dart 470 n/a BB stroker street car `THUMPER`...Check me out on FB Dominic Thumper for videos and lots of carb pics......760-900-3895.....