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I really wanted 10w40 but I dont need the eXtra add pack that comes with mobil high mileage. How does castrol 10w40 compare in high temp turbocharger use?

Hmmmmm, Sounds like a good mix to me! But what do I know!

If I mix 2qts mobil 1 15w50 & 2qts 0w40 what viscosity would I end up with roughly?

Yes I saw 306° and I went Googley eyed I thought the factory cooler would work a tad better than that. I will be installing a cooler & filling with 15w50 mobil or 5w50 castrol this weekend. I was leaning toward mobil 5w50 but it seems availability is scarce.

I checked my oil Temps today I got a reading of 306° after a hard run. Engine cooling system temp was 203°(I have a 185 t-stat) The turbo CHRA was at 410°. but the piston oil squirters probably add most of that extra heat and the fact that the engine is putting out 3x what it did from the factory.

I'm not really on the mobil 1 wagon. I just need a relative high zddp, Synthetic that can take hi Temps. I would like to run redline but I tune the vehicle on occasion and It can see really rich conditions, So it gets relatively short OCI's due to fuel dilution.. Anywhos Im also considering...

Originally Posted By: zray This may be apples to oranges comparison, but horsepower wise, I don't think you can do better for lubrication than Mobil 1 15w-50 or Mobil1 0w-40. When it gets really cold like less than 30 F as a high temp and lows around 0 F, I use the 0w-40 product . But most of...

What is so exotic about a red block in FL that drives the necessity of PAO and ester??? What's your technical basis that the M1 0w-40, which is sufficient to protect high end modern Euro vehicles that make WAY more power than vintage cars did, is insufficient? Have you tried a simple...

Is mobil 1 5w50 a "true" synthetic? Like PAO or ester? I'm asking because I tried mobil 0w40 but it's too thin for my old volvo redblock..so now I'm on the hunt for a robust OTC oil and it needs to be PAO or ester. And mobil 1 is pretty secretive about there oil which I could understand if I was...

I did not install it in the trunk to be "more beneficial" but I had no room up front after installing my 3" intercooler. Like I said before the trans temp never goes over 170° now. Before I seen as high as 250° and that was with the factory radiator cooler and small aux cooler both mounted up...

yes there is a fan 6 amp draw 650 or 750 CFM can't seem to recall which one but the trans temperature don't lie! bTW I'm switching to mobil1 0w40. questions though what makes a good turbo oil ht / hs? Or base oil pao/ester? I want the best oil for this application but I can't justify the cost...

The trans cooler setup is working great trans temp never goes over 170. 25 psi was the boost at that time. I don't consistently run that much boost i was just beating on my chest. I do tune accordingly to my boost levels & I cool my turbo as well. I'm using the factory Garrett oil return line...

Is it possible that the turbo hotside bearing is just so hot that the oil is running away or sizzling off!! Lol jk ..not really?

Originally Posted By: artificialist Who made the aftermarket turbo? On some of the Mitsubishi Ralliart and Evo pages I subscribe to, some people buy the cheapest turbo on eBay. Nothing good ever happens. Who made your aftermarket turbo? it's a china ebay turbo. But my brother also has a volvo...

Originally Posted By: Jim_Truett There is quite a lot of heat making its way down the shaft. I'm not sure there is sufficient oil flow through the CHRA. I would check oil flow, and consider a water cooled CHRA for this application. What are your EGTs during a run? The egt's are unknown. But my...

My turbo on my 1994 Volvo 940 started smoking.. The turbo was aftermarket & only about three years old. I used rotella t6 almost exclusively with the exception of a couple oil changes of PU 5w40.I changed the oil every 4000miles.The compressor side thrust washer and bearing/bushing look...

Though I can see where some people may not relate, my brother had a 90's? Ford Econoline and his never had any problem cruising it felt about perfect. But he installed 4.10s aswell and boy did the gas mileage say bye bye.. And it rev'd around 3000-3200rpm @70mph! But that was a 5.0 v8 and DOA...

Yes I have noticed all of the above. It just feels like it "should" now If you will.. Before it was very sluggish and the slightest uphill or light accel would always kick it down to a lower gear it was very difficult to maintain 65-70mph without kickdown. That being said the previous motor...

Thanks molakule i am hesitant to use the synthetic due to the previous issues. And the installers recommendation. But if I'm correct I believe gm spec'd the same fluid for their lsd's as the gov loc g80 but they probably did recommend extra additive if necessary for the lsd unit's. But im sure...

http://www.redlineoil.com/product.aspx?pid=39&pcid=4 this looks like the way to go! Now if I could get the go ahead from a bitog guru or two I will make my purchase.