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Oct 30, 2013 10:12 pm
Oct 30, 2013 10:12 pm
Subject: Re: Oil cooler for 4.5 engine
Gentlemen,
I am not familiar with Motul synthetic but here in the States some of the newer oils no longer contain zinc and many older cars such as ours have suffered from severe camshaft wear, as our flat lifters need the zinc as a lubricant. Modern cars with roller lifters do not need this and the oil blenders were asked to remove it to enable the pollution control devices to function better. As such, we have to buy a specialty oil or run an additive.
Gentlemen,
I am not familiar with Motul synthetic but here in the States some of the newer oils no longer contain zinc and many older cars such as ours have suffered from severe camshaft wear, as our flat lifters need the zinc as a lubricant. Modern cars with roller lifters do not need this and the oil blenders were asked to remove it to enable the pollution control devices to function better. As such, we have to buy a specialty oil or run an additive.