I conducted a search first to see if the Noack had been touched on and found nothing .
One analysis I have seen showed this oil to do exceptionaly well except of course the TBN does not allow for the big time drain intervals but who really does that anyway ?
Not many .
I'm not using Mobil SS but if I were I'd be tempted to try the Havoline 10w-30 up to 5-6k or so .
Great noack , great protection , great pricing
Hard to find
Autozones in the Twin Cities, MN usually have Havoline Synth. Used to cost about $3.30/qt - was a good value. Now they charge $3.99 - not so good compared to M1 at Wally's for approx $4/qt in 5 qt pails.
Hmmmm . . . That thread pretty much turned into a pro/con Mobil1 debate. Anyway, I have been a user of Havoline for years (dino Havoline) and would love to try the synthetic. I can't find much of it where I live though. It seems most of the store shelves here are dominated by Mobil and Castrol with the rest of the space being taken by Valvoline, Pennzoil, QS, etc.
I am getting ready to send in a sample for a UOA on motorcract 5w-30 in my buick; however I cleaned up on the Havoline Syn. at AZ and will do a UOA on that as well. I am either sending the sample to Blackstone or Butler SOS labs, have yet to decide.