Hey I don't normally post anything but I couldn't find a specific answer.. I am driving my evo 8 to a track tomorrow to get a time slip.. My dilema is I only run Mobil 1 10 30 and I have never ran this car at the track.. it is around 100 miles to get to the track and I'll be driving back after I race. I picked up Valvoline vr1 20 50. Would it be ok to drive there and back on this oil or should I keep the Mobil 1 oil. My engine has 88k stock block hks 272 280 cams buschur 3065 turbo kit alcohol injection it was tuned at 443HP on a mustang II dyno. Car has been reliable for the last 20k miles on this setup but my aem oil pressure gauge sometimes drops as low as 6-7 at idle..any input appreciated.. Thanks

 

The mobil 10-30 is perfect for the stock block, pro engine builders recommend 20-50 on built engines and aftermarket turbos. Buschur didnt tell you what oil to run on their turbo kit ?

 

20w-50 is too thick for stock clearances...i would stick with amsoil 10w-30 zrod or amsoil 10w-40

 

I run the amsoil 5-40 in my car and it is stock block, I used the 0-30 for a while but wanted the extra protection. You'll be fine running either in my opinion there is nothing special about that turbo that needs extra thick oil. You don't need gobs of oil pressure at idle anyway.

 

Ok just wanted to get a solid answer I will use 10 30 and see how it goes. Hopefully I push into the 11s tomorrow..

 

I run mobil f1 10/50 in the stock block

 

Why change the oil grade before going to the track? Your not doing anything different to the car then you do on a daily basis correct?

I put 2k miles on my 2.3 in my built 1g awd auto. All with 600+whp trapping 130. Always ran Castrol GTX 10w30 dino oil. Looked brand new when I parted it out...

 

At the same time, ZDDP is the BEST anti-wear additive for an oil, hands down. Nothing they've tried replacing it with does as good of a job protecting bearings from high pressures.

Science has proven this, again, again, and again. It doesn't matter what motor we're talking about, ZDDP is your best defense against wear.

I'm not saying you'll cause damage if you don't, but there are people in this community who believe in having safety margins... Motors aren't cheap to replace.

Plus, Rotella T6 5w-40 is pretty damn cheap.

 

Thank god you said something.You can run 20w 50 in your stock block with those power levels,it will not hurt anything.It's better on the bearings and turbo shaft.

 

You can choose to think or believe whatever you want but the truth of the matter is that I have had this same conversation with you for the past two years and is it very obviouse that you choose not to believe that zinc and phosphorus is the best technology that is currently existent to prevent metal to metal contact.

People that dedicate their lives to design oil and run test after test have helped many car enthusiast to have oils available that will offer the best friction less product regardless of the oil brand.

And YES a deficiency in zinc and phos in the oil can in the long run cause premature decay on the internals, many shops and mechanics have accepted this since the 80s the importance of ZDDP, it is the best anti wear additive we have to date. And second follows Molly which is largely used by Mobil.
Forced performance has run test in their labs using their own money and resources, AMS and many other shops out there know and understand the importance of this so that should settle it



Here is an article by valvoline, I choose them because if I give you an AMSOIL then I would be biased right ?

http://www.valvoline.com/faqs/motor-oil/racing-oil/

 

"Many hands-on car enthusiasts and engine experts believe the lower levels of zinc in SM motor oil is causing excessive wear in older style push-rod and flat-tappet engines. This is despite the fact that all new motor oil classifications are intended to be backward compatible. This has resulted in the widely accepted belief that modern motor oil is not adequate to protect older engines."

You make me tired. As quoted from the article you posted. Again I fail to where our engines fall here.

Again show me the engine wear in a 4g63 due to running oil that doesnt have >1200 ppm zinc/phos.

I know of a few high mileage evos that have never seen a drop.