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850 starts burning lots of oil from nowhere?

Help, Advice and DIY Tutorials on Volvo's P80 platform cars -- Volvo's 1990s "bread and butter" cars -- powered by the ubiquitous and durable Volvo inline 5-cylinder engine.

1992 - 1997 850, including 850 R, 850 T-5R, 850 T-5, 850 GLT
1997 - 2000 S70, S70 AWD
1997 - 2000 V70, V70 AWD
1997 - 2000 V70-XC
1997 - 2004 C70

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abscate  
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Re: 850 starts burning lots of oil from nowhere?

Post by abscate »

I saw huge variation between pennzoil synthetic 10w-30 and Castrol high mileage 10w-30 , all attributable to bad valve stem seals.
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SomeGuy537
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Post by SomeGuy537 »

abscate wrote: 07 Apr 2021, 07:53 I saw huge variation between pennzoil synthetic 10w-30 and Castrol high mileage 10w-30 , all attributable to bad valve stem seals.
I think my valve stem seals are bad too. Which oil worked better for you?

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abscate  
MVS Moderator
Posts: 35293
Joined: 17 February 2013
Year and Model: 99: V70s S70s,05 V70
Location: Port Jefferson Long Island NY
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Post by abscate »

SomeGuy537 wrote: 07 Apr 2021, 08:59
abscate wrote: 07 Apr 2021, 07:53 I saw huge variation between pennzoil synthetic 10w-30 and Castrol high mileage 10w-30 , all attributable to bad valve stem seals.
I think my valve stem seals are bad too. Which oil worked better for you?
The Castrol High Mileage Synthetic.
Empty Nester
A Captain in a Sea of Estrogen
1999-V70-T5M56 2005-V70-M56 1999-S70 VW T4 XC90-in-Red
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