Passing this along just for information. Nothing concrete regarding wear, but somewhat informative.
My message to Valvoline:
Castrol claims that their Magnatec motor oil contains additives which cling to metal parts after an engine is shut off and that these additives reduce engine wear during the warm up phase. Are there any such additives in Valvoline oils such as Maxlife? Additionally Castrol shows a graph of camshaft wear in the sequence IVA test where Magnatec significantly exceeds the spec. How does Maxlife compare in camshaft wear to the sequence IVA spec?
Valvoline's response:
Valvoline’s Maxlife engine oils contain proprietary components, including anti-wear additives (e.g. ZDDP) and friction modifiers, which are surface active and adhere to metal surfaces in the engine. These additives remain attached to the metal surface over a range of operating conditions (including start-up), insuring these surfaces are protected from wear and damage, while also minimizing friction to help maximize fuel economy.
While Valvoline does not advertise specific engine test results, we can say that our MaxLife engine oils perform very well in the Sequence IVA engine test, surpassing the wear performance required by the current API and ILSAC engine oil specifications.
My message to Valvoline:
Castrol claims that their Magnatec motor oil contains additives which cling to metal parts after an engine is shut off and that these additives reduce engine wear during the warm up phase. Are there any such additives in Valvoline oils such as Maxlife? Additionally Castrol shows a graph of camshaft wear in the sequence IVA test where Magnatec significantly exceeds the spec. How does Maxlife compare in camshaft wear to the sequence IVA spec?
Valvoline's response:
Valvoline’s Maxlife engine oils contain proprietary components, including anti-wear additives (e.g. ZDDP) and friction modifiers, which are surface active and adhere to metal surfaces in the engine. These additives remain attached to the metal surface over a range of operating conditions (including start-up), insuring these surfaces are protected from wear and damage, while also minimizing friction to help maximize fuel economy.
While Valvoline does not advertise specific engine test results, we can say that our MaxLife engine oils perform very well in the Sequence IVA engine test, surpassing the wear performance required by the current API and ILSAC engine oil specifications.