[500hpgtx]

I bought a new tractor this year, and I use Royal Purple Max Cycle and K+N filter.
My car dropped over 25 degrees using Royal Purple and Lucas Synthetic Stabilizer over MObil 1.
I will only use K+N, Mobil1, or Royal Purple oil filters. I believe their technology is fairly equal.

Fram caused oil to pour on my driveway. I took it off, inspected it, and it did the same.
A friend told me his buddy used a Kmart filter on his high performance Chevelle, I believe. It suck the material into the oil port, and that was the end...Cheers guys KEV