Read on for details.
Zinc oil for older cars.
In classic car and hot rod engines use a high zinc motor oil all the time.
The automotive community continues to debate whether switching to synthetic oil in older cars is beneficial or risky.
Also in the classic xl line is a 30w oil for pre 1950 vintage and classic cars.
Higher zinc levels in oil typically are for performance cars on the whole.
Chances are your classic car needs zinc oil additive to stay running strong.
Lucas oil hot rod classic car sae 10w 40 hp high zinc petroleum high performance motor oil for use with racing fuels synthetic non synthetic oils 5 quarts 4 7 out of 5 stars 92 38 61 38.
Specifically should you use a motor oil with zddp additives only during engine break in or throughout the engine s lifespan.
Then there is the question of mixing high zinc phosphorus content oils with sm to give necessary protection.
This means that not all current oils are appropriate for antique autos or even for those.
While the formulations of modern oils have changed along with the innovations that keep the automotive industry moving forward your older car s specific lubrication requirements were frozen in time the day it was built.
When it comes to older engines and classic cars high zinc content is a must and some oil manufacturers even sell special engine oil that comes with elevated zdtp or zddp zinc dialkyl dithiophosphates content.
There is no guarantee that a quart or two of older oils sj or sl or even a specially formulated high zddp content oil will homogenize with sm oils to produce the correct or desired level of zinc phosphorus for older engines.
Zinc acts as a friction inhibitor and research suggests that older engines using flat tappet lifters in the engine pretty much any v6 or v8 older than 1988 need to have zinc present in the engine oil in order to keep the camshaft and lifters from wearing prematurely.
Ilsac multi viscosity oils that are rated sm even feature special additives used for older engines that experts recommend for use in.
In general synthetic motor oil offers owners of newer cars trucks and suvs multiple benefits from extending component life to reducing cost of routine maintenance if you have heard about the benefits of synthetic motor oil in vehicles you may be inclined to switch.
Zinc zddp and zdtp is especially useful for cars with flat tappet camshafts which means a lot of classic cars hot rods and older muscle cars need zinc more than other cars.
This mono grade oil can also be used in most types of manually operated gearboxes.
What is high zinc.
