1994

Valvoline VR1 Racing Oil: Contains 75% higher zinc than SN or SM motor oil with a balanced additive package designed to work in both racing and traditional applications.

ZDDPlus is an oil supplement that contains very high concentrations of the well-known additive ZDDP (Zinc Dialkyl Dithiophosphate), which has been the primary EP (extreme pressure) ingredient in all quality motor oils for over 70 years.

Now, most standard motor oils do not have any zinc additives in them. As such, it’s often not wise to use modern oils for classic engines, and you’ll usually only see zinc in oil for old cars.

With double the zinc* level of current low-viscosity, API-approved passenger car oils, Mobil 1 Racing oils form a protective sacrificial layer on steel surfaces to protect against engine wear during metal-to-metal contact.

Castrol motor oil contains a zinc compound, zinc dialkyl dithiophosphate(ZDDP). This oil additive provides better anti-wear protection in your engine, especially the high load areas like the camshaft and lifters.

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.

Yes heavy duty engine oils or HDEO still have higher zinc and phosphorus than typical passenger car motor oils. No the higher detergents are not “bad” for gas engines.

Quaker State Defy Synthetic Blend Motor Oil has zinc and is an outstanding wear fighter in engines.

Quaker State Defy has a ZDDP composition of 1200ppm, a more than sufficient amount to stand up to the most aggressive engine profiles.

REMEMBER: Lucas Engine Break-in Oil Additive TB Zinc-Plus protects camshaft lifters and valve train during break-in period of motors. It contains an exclusive blend of extreme pressure additives and is designed for race applications requiring additional extreme pressure additives. .

Available in convenient 5 quart bottles, the formulation is perfect for the Hot Rod and Classic Car crowd with an increased zinc value of 2100 PPM.

Addition of 16 oz. to 4.5 quarts motor oil will achieve approximately 5,000 ppm of Zinc.

Since using this product, I usually don’t lose more than half a quart between oil changes and the engine seems to run smoother. I highly recommend Lucas for any high-mileage vehicles, it really works! This stabilizer will ensure engine coverage for your most vital parts within.

Lucas High Mileage Oil Stabilizer creates a coating that clings to metallic surfaces, eliminating dry starts that create the most damage and wear in an older engine.

Unlike synthetic blends or conventional oils, fully synthetic oils won’t break down and will protect your engine for longer—sometimes as much as 250,000 miles. At both low and high temperatures, synthetic oils enjoy better viscosity and stability than conventional oil or synthetic blends.