ZDDPPlus ZDDP Engine Oil Additive Zinc & Phosphorus 4 Bottle Pkg

I starting using this zinc product in my 2021 E350 RV with the Ford 7.3L gas V8, as to the catalytic converter damage some say it won't as long as the motor does not burn oil, why am I using it in a newer motor, well the 2020 thru 2022 Ford 7.3L gas now has lifter issues showing up around 40,000 miles, so I thought to help avoid this issue start using zinc in my oil.Ford and Chevy both have this issue with the new lifter designs in the motors, sure wish the auto manufactures could just get things right and stop changing designs every couple of years.

This is a great product. It also has a great price. Based on my needs, I can't find anybody cheaper. Also it has fast shipping. I recommend using this on every oil change.

It is difficult to rate a product that designed to prevent a failed state. Only over the long haul would a true understanding of the value be clear. It's active ingredients are known to work effectively and it is great to able to buy it.

Use this to replace the Zinc additive which is no longer present in many of todays oil's. Many of the off the shelf products available over the counter have "Zinc" written clearly on the label but when you read the small print they claim "just as effective as Zinc".Zinc was removed from oil due to it's adverse effect on catalytic converters. Most modern cars use some form of roller lifter which eliminated that high friction area that the Zinc was added to protect.I would not put this in your modern car especially if it has a catalytic converter !

It helps save the investment you put in to an older motor. I restore 50’s and 60’s American. It goes into everything I have and everything I work on

This product replaces the Zinc that is missing from modern gasoline, because of the catalysts that can be damaged. This is a must for older, pre catalyst motors that may be subject to more wear of the camshafts and valve seats, which are softer than modern motors.

I uses this in the oil on my 2012 Honda Goldwing. I notice an improvement in shifting, but only for about the first 1000 miles, then the benefits seem to disappear, at least the noticeable ones. Not sure it is worth the money. Of course, I don't know if it is providing "unseen" benefits inside the engine.

This product was recommended to me by an old-school mechanic who works on classic cars for my 68 chevy.It aids in the proper lubrication of pistons and parts, specially on cold cranks as the additive keeps the parts lubricated with a coating. These additives were found in oils back then, but with the regulations and advances of that came later, it was eliminated from their contents.