t44e6
Full Access Member
- Joined
- Dec 23, 2021
- Posts
- 106
- Reaction score
- 92
- Location
- NH USA
- First Name
- David
- Truck Year
- 1982
- Truck Model
- K10
- Engine Size
- 350
As you said, most engines will do fine without higher ZDDP levels especially if they aren't driven hard. I also agree that many people are worrying about it needlessly, the automotive version of "gluten free" food. In the Porsche shop we always used VR1. There are numerous high ZDDP racing oils, and break in oils. The best thing to do is do your research if you are building an engine and follow the guidelines of the people that make the components. I have seen anecdotal reports of people having wear issues in older off road equipment, and things like old motorcycles or cars that have such things as lifters that aren't designed to rotate. If in doubt, do some research and if you don't find anything it won't hurt to use higher ZDDP content oil as long as it meets the requirement of the application. The best strategy is to send a sample of your oil to be analyzed, then you will know exactly what is happening inside your engine. As for additives, if you use the proper oil for your application and change it at the proper interval I think they are pretty much placeboes.