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Posts Tagged: zinc

Why a Zinc Oil Additive? Because Today’s Motor Oils Are Not Made for Average-Aged U.S. Vehicles

Thankfully, Rislone Oil Supplement, a potent zinc oil additive, can help.

A car of average age today needs more metal protection for its engine than it can get from standard motor oil. That’s because the average age of U.S. vehicles is currently 11.5 years old, according to research firm IHS Automotive, and all vehicles of that age and older need more zinc and phosphorous than current engine oils contain. Rislone® 3X Concentrated Engine Oil Supplement with Zinc Treatment (p/n 4405) provides consumers, technicians and auto parts counter personnel with a golden opportunity to help with these vehicles at any oil change interval.

Environmental Protection Agency emissions regulations led to new engine designs that allowed motor oil…

Posted in: Engine

Older Engines and Zinc (ZDDP): What You Need to Know

It’s no secret that older engines aren’t like today’s modern computer-controlled powerplants. In particular, high-performance older engines (like those in classic cars and hot rods) have lubrication demands that are not met by modern oils.

That demand, in a word, is zinc dialkyldithiophosphate, otherwise known as ZDDP. We’ll come back to that in a second.

But first, why are modern oils lacking ZDDP protection?

It’s a simple story of market evolution: over the years, motor oils have been updated to meet the needs to changing engine designs. While that’s great for newer motors, it leaves older engines out in the cold. These updated oils have greatly reduced ZDDP levels, so they simply do not offer the protection needed for older engines.

So then. What is ZDDP anyway, and…