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The Best Oil Additive & Cam Assembly Lube on the Market!

The Science behind ZDDPlus

ZDDPlus is the original, best researched and documented cam wear solution available.

zdd oil additive information

ZDDPlus in Action

Tech Briefs & Guides
ZDDPlus™ ZDDP Oil Additive

ZDDPlus™ ZDDP Oil Additive

Buy ZDD Plus Oil Additive
ZPaste™ Cam Assembly Lube

ZPaste™ Cam Assembly Lube

Buy ZPaste Cam Assembly Lube

Why ZPlus?

The sliding cam-to-cam-follower interface in a non-roller lifter engine requires a special anti-wear additive, which has historically been ZDDP. After 70+ years of positive protection afforded by ZDDP, emission system changes are forcing a reduction in the amount of ZDDP in motor oils, leaving your classic or performance car at risk of premature cam and lifter wear.

When a single 4 oz bottle of ZDDPlus™ is added to a normal 5-quart oil change, you will restore the proper amount of ZDDP that was found in into pre-1996 oils. Using ZDDPlus™ affords you total control over the characteristics of the oil in the engine by allowing you to use the full 5 quarts of high-grade automotive oil of your choice.

BUY ZDDP NOW

Hear From Our Customers

Ron Hutter Hutter Race Engines

We use ZPlus on all of our Flat Tappet built motors.

Ron Hutter , Hutter Race Engines
“Big Daddy” Don Garlits

ZDDPlus is the best insurance to protect your classic or high-performance flat-tappet engine!

“Big Daddy” Don Garlits, NHRA’s #1 Drag Racer of All Time