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1990 Subaru Legacy Oil consumption

Tiny
THEKINGOFSKA
  • MEMBER
  • 1990 SUBARU LEGACY
  • 4 CYL
  • 2WD
  • MANUAL
  • 133,900 MILES
I've got a wee bit of a problem with oil consumption. Every time I take my car in for an oil change (I go in every 3k miles on the dot), the oil is squeaky clean but I'm always about 3 quarts low. I don't notice any smoke behind me (though I'm pretty sure it's burning and not leaking), and I asked the guy at the oil change place to check for external leaks and he couldn't find any. Otherwise, it's in near-perfect mechanical condition, and I want to keep this car running as well as I can for as long as I can. Are their any products I can add to my oil to slow consumption? Maybe switch to synthetic or high-mileage oil?
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Thursday, October 30th, 2008 AT 4:56 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

not sure where you are, but see if you can get Penrite HPR40 or 50, what weight oil are you using?

Mark (mhpautos)
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Friday, October 31st, 2008 AT 3:10 AM
Tiny
THEKINGOFSKA
  • MEMBER
  • 4 POSTS
I'm using conventional 10w30
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Friday, October 31st, 2008 AT 4:15 AM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

I would by trying 20W-30 this may help ease the oil consumption a little, as long as it meets the temp specs for your location.

Mark (mhpautos)
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Friday, October 31st, 2008 AT 4:39 AM

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