I still cannot figure out how you guys can think this. THEY CANNOT have the required zddp in them any longer. It's FEDERAL LAW. You CAN'T PRODUCE OIL WITH THAT STUFF ANY LONGER! Tell me what business owner would risk a HUGE fine, that could possibly put him under once and for all, just to produce a stupid oil, for what.... 25 cars left on this planet, that are still using components that require 21 year old oil???? You're ****ting me right? It's gone guys. Give it up. Just because you read "has so and so amount of zddp" doesn't mean it's true. Do you know how many lies there are, in ingredient descriptions out there?? And all this "well my oil has been working fine for 28 years." is fine and dandy. And stock shortblocks have been into the 9's too. Does that mean it's the right way of doing things? No.
All Richard Clark did, was advertise that this is like insurance. Your car may or may not fail. But do you want to take that chance? Why do you have insurance on your car? You're not going to wreck it, right? Ok then.
How do you KNOW that so and so green oil, has the required stuff in it? Did you do your own tests on it?
When you add it up, that expensive racing oil is the same per quart, as my plain old standard issue stuff, with a bottle of zddp added in it. But the difference is, I KNOW I have the correct amount of zddp in my car. You don't. You're just HOPING, that the manufacturer has the proper amount of integrity. Which I HIGHLY doubt. I do business with many different businesses every day here, and I get let down DAILY. WITHOUT FAIL. People are just plain freakin worthless, with ZERO pride or integrity nowadays. There's no WAY I'd trust those zddp levels, when for the same money, I can buy normal oil, and with my own hands, add that zddp. THAT'S peace of mind. What's it worth? Your cam? And what else does it take with it, when a lobe fails? You got all that extra back up money saved up? Not me. I'll buy the zddp, and watch it go in with my own eyes. HOPING some high speed racing oil has the required amount, isn't worth it in my opinion. I don't base my success on hopes. I make it happen.
you entire post makes no sense. not to knock zddp as i am also a user of it, but we have no idea where richard clark gets this stuff from. I am a strong advocate of brad penn as i have used it with success on hard driven engines.