Nov 22, 2004 · LUCAS Zinc-Plus Engine Break-in Oil Additive is the most economical ZDDP additive you can use. It comes in a 16 oz bottle. Adding 2 oz per 5 quarts of ANY motor oil will …

Nov 6, 2021 · Best ZDDP additive? I'd say OLOA 269R paired with some Vanlube 7611M, Molyvan 3000, and Molyvan 855 for good anti-wear, extreme pressure, and friction reducer …

Jun 19, 2012 · I'm a firm believer in NOT using oil additives (ie. "thickeners") such as Lucas, Motor Honey, etc. but what about additives that either contain ZDP or ZDDP additives? I know …

May 4, 2004 · The anti-wear additive being discussed is zinc dithiophosphate (ZDP). Before debunking this myth, we need to look at the history of ZDP usage. For over 60 years, ZDP has …

Mar 30, 2010 · Thanks for the reply! I am using both to break in a new engine and as a full OCI maintenance dose to beef up the ZDDP in oil for flat tappet toys. I just don't understand how …

Nov 24, 2013 · I know the oil companies change their formulations from time to time... What’s the latest news for high ZDDP oils in 2020? Right now my ‘68 Skylark with a rebuilt 462 has …

Aug 7, 2020 · Here's an explanation about using ZDDP in an engine. More is not always better, even when the additive is beneficial.

Jan 25, 2007 · ZDDP is really only needed in some of the poorly designed auto engines from the 60's through 80's. My questions are thus: 1) When did ZDDP start being used as an oil …

Nov 16, 2002 · Here is RL's take on it: quote: Thank you for contacting Red Line Oil, ZDDP is still the best antiwear additive, depending on the engine, it's design and requirements a reduced …

Aug 8, 2005 · It was an oil additive, he said was a zddp additive. Was good to use for bearings mainly for todays oils. Reading the back of tthe bottle, it was something like a 16 or 24 oz …