Mobil Drive Clean 5w-30 (GF-4), 2,503 miles, 2005 Subaru WRX STi

[Alan]

quote:

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Originally posted by JohnBrowning:
WOW, I would never in a million years put a 5W30 light duty PCO Dino product in a Turbo application!! Longterm you are asking for trouble with cokeing!!!

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I see your point however I have seen a lot of turbocharged Mitsubishi's,Toyota's,Nissan's and Saab's go over 225K using nothing but dino oil and I doubt they were all well taken care of.

For example a friend had a 84 300ZX turbo with around 250k and the engine and turbo wouldn't die!It was the tranny that ultimately sent it to the scrap heap.

 

[Bror Jace]

AndyH, I think that mass market oils simply aren't gonna fit the bill.

If you are gonna keep this car for a while and can limit your drain intervals to no more than 4,000 miles, you'd be best to start now with Schaeffer Supreme 7000 synthetic blend in 10W-30 and stick with that stuff for the life of the vehicle.

It's a very shear stable, Group II+ mineral base with around 20% PAO and a fantastic additive package.

Hard to beat at ~$3 per quart.

--- Bror Jace

[ February 17, 2005, 12:19 AM: Message edited by: Bror Jace ]

 

[kursplat]

quote:

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AndyH
Yes, I agree. But don't worry, I have no plans to run dino in this car over the longterm. As I mentioned, I was only using it because so many people in the Subaru forums felt strongly about running dino oil in the WRX and STi for the first 10,000 miles

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just what i have planned. mostly due to the reports of wrx/sti owners on NASIOC and other forums about ring sealing "issues". true or not i don't think waiting 'till 10,000 for synthetic will hurt.

 

[AndyH]

quote:

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Originally posted by kursplat:

quote:

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AndyH
Yes, I agree. But don't worry, I have no plans to run dino in this car over the longterm. As I mentioned, I was only using it because so many people in the Subaru forums felt strongly about running dino oil in the WRX and STi for the first 10,000 miles

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just what i have planned. mostly due to the reports of wrx/sti owners on NASIOC and other forums about ring sealing "issues". true or not i don't think waiting 'till 10,000 for synthetic will hurt.

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Agreed, and I'm finally over the 10,000 mile mark on my STi (actually something like 11,000 miles now) and I'm running Castrol Syntec 0w-30 (German Castrol) on a planned 5,000 mile OCI. I'll UOA the GC @ 5,000 miles to see how the oil held up, I'm guessing it will be much better than any of the other oils I have used up to this point in time (Mobil Drive Clean 5w-30, Motorcraft Semi-Synthetic 5w-30, & Mobil Clean 7500 Semi-Synthetic 10w-30).