Re: How to hydraulic lifters work on the 351W?
In the past, warnings were given about switching to synthetic oil because it could harm the engine. The reason for this was that many synthetic oils contained esters, which are organic compounds mixed with alcohol. This combination was often hard on seals in the engine, and would cause them to wear down and start to leak rather than sludge damaging the seals .Synthetic oil technology has improved over the years, and most cars on the road today should be able to use either synthetic or regular oil, so long as the proper weight is used.
"Synthetic motor oils damage seals. "
Untrue. It would be foolhardy for lubricant manufacturers to build a product that is incompatible with seals. The composition of seals presents problems that both petroleum oils and synthetics must overcome. Made from elastomers, seals are inherently difficult to standardize.
Ultimately it is the additive mix in oil that counts. Additives to control seal swell, shrinkage and hardening are required, whether it be a synthetic or petroleum product that is being produced.
That is from Ed Newman , Marketing Manager for AMSOIL INC., manufacturer of the original synthetic motor oil for automotive applications. He has published more than 200 articles as a freelance writer on a wide range of important topics.
Never, never, never give up.