The information about Penrite is good to know Gadge. I use their automatic transmission fluids (both dex 3 and full synth Dex 4 which also meets Hyundai specs), and NLGI II HTB grease significantly.
I also use their Chain and bar oil in my saws and on foam filters. The only issue I have is it is a very thick oil (perfect in air filters) and won't feed properly in my ryobi pole pruner (in which I now run 50/50 15w40 and penrite bar oil).
Their full synthetic MC2-st 2 stroke oil is also excellent - JASO FD for maximum lubricity, no smoke or port blocking. I used the semisynth version before this - also very good.
At $35 for 1L it isn't cheap, but for $26ish on special it is better than most out there.
Plus I put Penrite coolant into my car when I did the full service
If anything, I should use Penrite motor oil as well
Penrite was the only company who had all the information compiled above available on their website for all to see.
Castrol and Nulon returned my email within a day, GW took 2 emails to get a response, and Valvoline took 3 tries and eventually a 'facebook' email (message app) to get a reply.
MF - you use 15w40 Vantage premium mineral correct (from last memory)? Haven't seen anything recently unfortunately. Its always semisynth vantage on special.
Probably doesn't make much difference due to the lax synthetic definitions after Mobil v Castrol lawsuit
