Mine also started ticking right after I installed fossil M2 cams, car only had 12000 miles when they were installed

I have no doubt that this new lubricant is a product possesed of considerable merit. However, I am left wondering why this particular thread was not started instead in the Vendor Announcements section rather than in this venue.

The raison detre of that vendor's subforum is specifically this form of commercialized promotional fanfare. Sure, I mean duh, this product's release is guaranteed a much larger audience on the Engine, Turbo, and Drivetrain forum. But, that's not the point. Or, is it?

I've been using Zrod 10W-30 for the past month, so far so good!

I wasn't trying to sell it when I posted the thread, it was just information for the community... didn't really think about it...

I'm about to do an oil change using the Amsoil European Car Formula 100% Synthetic 5W-40. Can I mix 1 quart of this Zrod 10w-30 then the rest is European 5w-40. Just for Zinc/phos purposes. My car is Evo x MR stock with bolt-on @330awhp. I still have a catalytic converter but it's an AMS HFC.

Anyone knows how zinc/pho contents of European Car Formula 100% Synthetic 5W-40.

Thanks.

i'll be using this for sure this go around

You can mix not an issue at all.

I have been mixing 2 quarts of RD 15-50 with 3 quarts of Z-Rod 20-50 as of late...

Posted this in another thread:

http://speedtalk.com/forum/viewtopic...1d4896#p378825

Check the list of "Outstanding Protection" category - spoiler, z-rod is on there

10W30 Amsoil Z-Rod Oil, full synthetic = 95,360 psi
zinc = 1431 ppm
phos = 1441 ppm
moly = 52 ppm

What about built motor daily driver during winter in the Midwest? Like below zero cold start. Is 20W50 too thick?

Back in the days I was running 10w60 AGIP race oil in my turbo 3sgte mr2, even in the winter months out in Nebraska. Never had issues with it and it saw lots of track time out at MAM without ever a hiccup. Maybe the 4g63 is more particular in the oil it wants though, idk.

It may not be an issue if you let the motor warm up well before hard driving or driving in general. But keep in mind that most the wear occurs during cold start-ups so the thicker the oil the more prone you are to wear. I would recommend the AMO 10W40 or Racing dominator 15W50 since they run on the lower end of being thick. Summer no issues with 20W50

Making the switch from Dominator 15w50 to Zrod 20w50.

The 20w50 is better for a built 2.0L as oppose to the 10w30?

Is this because of the thicker viscosity being able to provide a better seal for not as tight clearance?