New Super Tech 15w-40 CK-4/SN Full Synthetic HDEO VOA w/PC

What is the zinc content? I've looked hard but cannot find it.
You can find that here.

 
If all else fails with rear main. Throw 1 quart of 20w50 in it vr1 or mobil 15w50. Yeh the high mileage stuff helps seals for sure. But its a bandaid. Id say thicker is better. In an older jeep like that hell id run straight 15w50 mobil. Has similar zinc levels and thicker so that it wont leak past seals. Its cheap. 25 for 5 quarts. Excellent quality. But you do you
I have deeply considered dino 15w-50. I'll probably reach the emotional state of 50w eventually :LOL:
 
Just tossed this stuff in one of my Jeep 4.0 XJ, after noticing a slight, but concerning noise I suspect is lifter noise. Suddenly in he past 3-4 years formerly super reliable 4.0 enginee have been dissolving lifters and camshafts, noted on the Jeep forums and youtube. Something us VERY wrong with modern oils in these old motors. Not sure which oil is most like old formulations. Dino oil? Which one?

This is starting to feel like when taking the lead out of gas trashed millions of valvetrains.

Of note, this oil did eliminate the noise. Not sure what is really going on.
You might be on to something. The lifter and cam problems are very wide spread among newer engines also. And the new roller lifters seem to be worse for wear than the old flat tappets.
 
I personally only run 15w50 in my Mercedes benz 4.7 tt that calls for 0w40. It runs so much smoother and quieter than 0w40 water oil. I like oils rated for diesel/gas than solely gas. A lot of the the turbo gas guys run 5w40 t6 or Valvoline premium blue. Anyways. I have 4 gallons of 15w40 super tech now. Going in ford eco boost 2.7 tt and merc next change. Will update UOA later on
 
I personally only run 15w50 in my Mercedes benz 4.7 tt that calls for 0w40. It runs so much smoother and quieter than 0w40 water oil. I like oils rated for diesel/gas than solely gas. A lot of the the turbo gas guys run 5w40 t6 or Valvoline premium blue. Anyways. I have 4 gallons of 15w40 super tech now. Going in ford eco boost 2.7 tt and merc next change. Will update UOA later on
The required HT/HS of that 40-grade oil hardly qualifies as “water”.
 
Going to do bmw 335 diesel 3.0, ford eco boost 2.7 tt, and a 4.7 tt v8 benz. I have run diesel oils in my gas cars before with very good results before. This oil is SN rated so gas engines is fine. I was an avid user of Valvoline premium blue 5w40 in these cars for years. Just seeing if this oil lives up to its hype
 
I know. There is no water. I was joking. I dont need 0w. I live in Texas
You may not need the 0W rating, that’s correct. But there are other advantages including that Euro oils in that grade generally carry demanding approvals and use superior base stocks to achieve the 0W rating. I’m not saying the 15W-50 is a bad oil but without the proof that an approval demonstrates you don’t really know it’s better.

If you like that it’s quieter, sure. But to reject an oil with multiple approvals just because it has an unneeded winter rating isn’t based on performance.
 
You may not need the 0W rating, that’s correct. But there are other advantages including that Euro oils in that grade generally carry demanding approvals and use superior base stocks to achieve the 0W rating. I’m not saying the 15W-50 is a bad oil but without the proof that an approval demonstrates you don’t really know it’s better.

If you like that it’s quieter, sure. But to reject an oil with multiple approvals just because it has an unneeded winter rating isn’t based on performance.
I agree. Im doing a UOA on the 15w50 Napa(Valvoline) when i drain here soon. See how it looks. I had the euro 5w40 in the ford eco 2.7tt this time around. I know euro spec oils have different formulations and use better base oils typically.
 
Hey there brother. Did you get a UOA on this oil yet? From looking at it , it seems like a better oil than Valv prem blue FS and mobil delvac 1 fs well.
Hello, I plan on using this in the garden tractor but haven't used it yet. It'll be a while before I get there. It appears to be an excellent new option. When I do I will be sure to post it in the appropriate forum. Thanks
Any updates on this oil with a UOA?

Here is the latest UOA, from my John Deere garden tractor, with this oil.
https://bobistheoilguy.com/forums/t...i-17-hp-used-oil-analysis-history-uoa.389671/
 
Interesting. Im running it now. Will send out to blackstone with tbn. Report back in 4k to 5k miles.
Yeah, let us know how it goes. I was surprised that the viscosity went from 15.1 to 13 in just 4.9 hours in the tractor mower but I set the engine at 3450-3550 RPM's.
 
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