Eastwood 4 Ounce Bottle of ZDDP Oil Additive.If your project vehicle is pre-1989, ZDDP Oil Additive is a must for keeping that engine running smoothly. Today's motor oils won't provide the ZDDP your older engine needs, unless you add this ZDDP Oil Additive!
After 70+ years, the EPA mandated that all domestic motor oil producers remove ZDDP (Zinc Dialkyl Dithio Phosphate) from all conventional and synthetic motor oils. If your engine was designed before 1989, the non-roller lifters still require ZDDP to avoid premature deterioration.
ZDDP alters bearing and journal surface characteristics to prevent metal-on-metal contact. ZDDP also reduces the tendency of parts to scuff or gall under heavy loads.
*Add a 4 ounce bottle of ZDDP to every 4 or 5 quart oil change.
Product ReviewsWrite a review
Eastwood ZDDP Oil Additive 4Oz. Bottle is rated out of 5 by 4.
Rated 5 out of 5 by Ryder5300 from Great find - Great value With the lack of zinc in current mineral based oils, I was hunting for something to compensate the absence for my 1987 Toyota FJ60 straight six. With only 140K miles on her, I wanted the tappets and valve train to be happy for miles to come. One bottle of this for each oil change is solid and inexpensive insurance to say the least. Fulfillment and shipping were quick as well.
Date published: 2015-03-24
Rated 5 out of 5 by Buick38 from Just what i needed for my car. When looking through my 36-38 Buick club magazine i came across an article on motor oils. The article listed three(3) oil brands with ZDDP none of which is available in my area. Oils with ZDDP is recommended for low compression engines like in my 1938 Buick Century. (found Eastwood ZDDP on the inter net)
Date published: 2015-02-09
Rated 5 out of 5 by Sport from Great service from Eastwood Haven't had a chance to use the product. Glad to learn about ZDDP, I just found out about it in the Studebaker Driver's Club magazine, Turning Wheels. I just rejoined after 35 years.
Date published: 2015-02-12
Rated 5 out of 5 by Steve58 from The good oil I have used this in my classic mini to great effect, it is supercharged and the ZIP gives the older style white metal bearings the protection they require
Date published: 2015-02-04