|
Group: Forum Members
Last Active: Yesterday
Posts: 336,
Visits: 1.5K
|
I rebuilt the engine and tranny on my 54 lincoln. Also drained rear end lube. Was wondering what y'all think about using synthetic transmission fluid, engine oil and rear end lube.
Brad
Sierra Vista Arizona
1954 Lincoln Capri
|
|
Group: Administrators
Last Active: 2 hours ago
Posts: 7.4K,
Visits: 205.7K
|
My two cents worth. For rear differentials, I have had random issues with full synthetic oil leaking past the pinion yoke oil seals. Simply putting conventional oil back in those rears fixed the oil leak problem. If the rear end has leather seals, I would definitely shy away from the full synthetic oil. If the engine is a fresh rebuild, then use an oil that will promote a quicker piston ring seating. Synthetic oil as a general rule minimizes friction and that’s not what you want on a fresh engine build. The same oil leakage issues mentioned above also apply to the engine. Some leak with synthetic oil and some don’t. The other consideration is the cost of synthetic versus conventional oil. Synthetic oil is designed to go longer miles but due to the low miles and short driving many classic cars experience, the oil is changed more on a time basis rather than a mileage basis. With this in mind, simply use the conventional oil as you are not needing the high mileage characteristics of the synthetic oil. For automatic transmissions, always use the grade/type recommended for that transmission. If that particular grade is available in a full synthetic, then you can give it a whirl. Other comments or experiences always welcome so don’t let this be the last word on the subject.
  Lorena, Texas (South of Waco)
|