Oil Filter ??

[Dirtman29]

for a ford 2.3 are you kidding me you use 10W40....and you don't float your valves....wow are you racing in the winter

Rotella 15w40 if your running on a 3/8

Valvoline 20w50 that has zinc added into it...for those really hot days, bigger track or a lot of laps

I don't care what people say any additives will change the viscosity of the oil to who knows what

Yep, conventional 10W40...in a 2.3L...in the summer...small hyd. cam, only goes to 6800 RPMs and Im just about there at the end of the straights on 1/4 mile medium banked dirt track.

[car62]

i run Schaeffers Supreme 7000 20w50 full synthetic

[oldgoat]

Always used castrol gtx 20/50 never had a problem. This season switched to brad penn 20/50 and I was having problems with either the lifters pumping up or floating the valves. Is this because of the oil?

[dwracing]

Thank You for all the help.