Originally Posted By: OVERKILL
Originally Posted By: zpinch
Amsoil is the most robust 'all around' oils you can buy... best extreme pressure anti wear results (top tier additives)
But that isn't relevant to your engine, which is why that test is for gear oils, not engine oils
Originally Posted By: zpinch
, one of the best NOACK volatility test results (7% for 5w30, 5.5% for 5w20), oxidation resistance, TBN, the best low temperature crank-ability(3727cP @ -22F).
Yes, the NOACK is nice and low and the CCS performance is also excellent. However, Pennzoil Ultra 5w-30 also has exceptional NOACK (6.6% as tested) and low temperature performance (3,827cP):
http://www.pqiamerica.com/March2013PCMO/penzultra.htm
Originally Posted By: zpinch
Simply put, AMSOIL SS oil is in a class of it's own when it comes to having an oil that exceeds all other oils in almost every aspect of oil performance.
+1 AMSOIL SS
I wouldn't go quite that far. They are probably the best available oils for extended drain intervals. And I am quite pleased to see AMSOIL getting manufacturer approvals now (like LL-04, A40...etc) but there are other excellent products out there as well from both other blenders (Redline for example) and the majors (Mobil/SOPUS/BP). The performance specs of Shell's GTL-based products (on paper) have been impressive to say the least.
Re the Ultra comment: the Ultra PQIA tested is the "old" formula that is no longer available. Its replacement, Pennzoil Ultra Platinum, is nowhere near as impressive,at least on paper. And who can find it anyway?
Originally Posted By: zpinch
Amsoil is the most robust 'all around' oils you can buy... best extreme pressure anti wear results (top tier additives)
But that isn't relevant to your engine, which is why that test is for gear oils, not engine oils
Originally Posted By: zpinch
, one of the best NOACK volatility test results (7% for 5w30, 5.5% for 5w20), oxidation resistance, TBN, the best low temperature crank-ability(3727cP @ -22F).
Yes, the NOACK is nice and low and the CCS performance is also excellent. However, Pennzoil Ultra 5w-30 also has exceptional NOACK (6.6% as tested) and low temperature performance (3,827cP):
http://www.pqiamerica.com/March2013PCMO/penzultra.htm
Originally Posted By: zpinch
Simply put, AMSOIL SS oil is in a class of it's own when it comes to having an oil that exceeds all other oils in almost every aspect of oil performance.
+1 AMSOIL SS
I wouldn't go quite that far. They are probably the best available oils for extended drain intervals. And I am quite pleased to see AMSOIL getting manufacturer approvals now (like LL-04, A40...etc) but there are other excellent products out there as well from both other blenders (Redline for example) and the majors (Mobil/SOPUS/BP). The performance specs of Shell's GTL-based products (on paper) have been impressive to say the least.
Re the Ultra comment: the Ultra PQIA tested is the "old" formula that is no longer available. Its replacement, Pennzoil Ultra Platinum, is nowhere near as impressive,at least on paper. And who can find it anyway?