Can you have too much ZDDP?

Too much ZDDP can do almost as much harm than not enough. High levels of ZDDP can begin clogging the lubricant-carrying crevices in the cylinder wall, which can then cause the engine to burn oil.

Does Mobil Delvac have zinc in it?

MOBIL DELVAC 1630 30wt HIGH ZINC, 1400ppm ZDDP, MOTOR OIL, 55 Gallon Drum. Mobil Delvac 1630, 1640, and 1650 are high performance monograde diesel engine oils formulated from advanced technology base oils and a balanced additive system.

What diesel oil has the most zinc?

Does All Diesel Oil Have Zinc? CI-4, CI-4 Plus, and CJ-4 diesel oils typically have Zinc levels of 1100 parts per million (ppm) or more.

How much zinc do old engines need?

1,200 PPM
Most engine and engine component manufacturers recommend zinc and phosphorus content of more than 1,200 PPM for break-in; in fact, many will void warranties on camshafts or crate engines if this minimum is not found in the oil sample you supply when returning broken parts for warranty.

How much zinc is too much for an engine?

Zinc and phosphorus content of more than 1,200 PPM are recommended for break-in on camshafts and crate engines; if this minimum is not found in the oil sample you supply when returning broken parts for warranty, many engine and component manufacturers will void warranty coverage.

How much zinc do you add to oil?

Add 16 oz. of TB Zinc-Plus Engine Break-In Additive to 4.5 quarts of motor oil to achieve approximately 5,000 ppm of Zinc. Not recommended for use in passenger cars requiring API SG, SJ, SL, SM, and post 1994 vehicles. May cause damage to catalytic converters.

Does Rotella T4 have zinc?

Does Rotella T4 Oil Contain Zinc? About 1200 parts per million of zinc and 1100 parts per million ofphosphorus are contained in our Rotella T4 15W-40 (CK-4). ZDDPs are designed to protect against wear and tear.

How much zinc is in Valvoline VR1?

Valvoline VR1 Racing Oil contains . 13 percent zinc and . 12 percent phosphorus compared to the Valvoline “Not Street Legal” Racing Oil, which contains . 14 percent zinc and .

What is ZDDP in engine oil?

What is ZDDP? ZDDP stands for zinc dialkyldithiophosphate. It was developed in the 1940’s and was a common and effective additive in engine oil. By the 1990’s, the ZDDP level in most oil was reduced.

What is the difference between SL and ZDDP oil?

In 2001, SL-rated oil still contained 1,000 ppm of phosphorous, and it is the phosphorous that limits are set on. But this limits the amount of ZDDP an oil manufacturer can use. The rating was changed due to demands for increased engine cleanliness standards.

Is ZDDP the same as CJ-4?

The then-current CJ-4 rated diesel oil had a phosphorus limit of 1,200 ppm. There were no previous limits to the amount of phosphorus or sulfur in “C” rated oils. But the high level of detergents and dispersants in diesel oil still compete with the ZDDP for metal surface areas. ZDDP is a “class” of additives today, not just one particular chemical.

What is ZDDP in Duckhams?

The zinc ion adheres to the metal surface. Under heat and pressure, ZDDP forms a microscopic glassy, phosphate layer that fills in the peaks and valleys of surface roughness, improves lubrication and forms a sacrificial wear coating. In Duckhams oil that coating will be approximately 2 microns in thickness.