Use Full-Syn or Syn-Blend

['00obw]

Now that I have a fairly large stock of pcmo's, 44qts full synthetic (GC, M1 & PP) and 44qts syn-blends (MC & TropArtic). What should I use up first..fs or sb? The Subaru has <49,000 miles on it.

 

[haley10]

Use the GC first and enjoy the lower wear until it's exhausted.

 

[GROUCHO MARX]

Yeah, I guess I would use the good stuff while the car has relatively low miles.

 

[edvanp]

How many miles between changes? If only 3-5k, then blend it. If you plan to run 6-9k between changes, run the GC first.

 

['00obw]

quote:

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Originally posted by edvanp:
How many miles between changes? If only 3-5k, then blend it. If you plan to run 6-9k between changes, run the GC first.

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I was thinking about using fs spring to fall, 7 months, and sb during the fall-winter, 5 months. The winters here are mild rarely
I don't want to use straight GC 'cause, in my experience, thick 30wt oils make my car run sluggish and a ~1 mgp drop.

 

[edvanp]

I have a ton of Mobil 1 Full Syn. in the 0w20 & 0w40 flavors. I use them to blend with other oils I've picked up cheap (ala TallPaul) over the past year. I typically run 5k on my changes and will blend depending on the season and what the car seems to like.

 

['00obw]

quote:

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Originally posted by edvanp:
I have a ton of Mobil 1 Full Syn. in the 0w20 & 0w40 flavors. I use them to blend with other oils I've picked up cheap (ala TallPaul) over the past year. I typically run 5k on my changes and will blend depending on the season and what the car seems to like.

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I bought the GC during the Feb. AZ $1 sale and knowing it was too thick, used the PepBoys B3G3 coupons to buy Mobil 1 0w20 just for mixing. That's what I using now,~53/47 mix of M-1/GC...runs great.

Gave 9qts of GC to my brother for his '00 BMW 328i.