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SVTPerformance's Chain of Restaurants
The Greasy Spoon
High mileage oil
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<blockquote data-quote="mustang john" data-source="post: 14942461" data-attributes="member: 30913"><p>I have a very high mileage 03 Lexus GX470, it currently has 375k and still rolling strong. I never used anything but 5w30 conventional oil, but in the cold of winter i started noticing that it would smoke more and more on cold starts. I am a Lexus tech for a living and have rebuilt my fair share of heads and knew it was the valve stem seals that were hardened from age and miles. I wasnt ready to tear into it and redo the seals so i gave the valvoline high mileage a shot. I was impressed, within two oil changes my full minute of smoke on cold starts was reduced to a few light puffs on start up. Maybe now i can make it to 450k before i am forced to tear into it lol.</p></blockquote><p></p>
[QUOTE="mustang john, post: 14942461, member: 30913"] I have a very high mileage 03 Lexus GX470, it currently has 375k and still rolling strong. I never used anything but 5w30 conventional oil, but in the cold of winter i started noticing that it would smoke more and more on cold starts. I am a Lexus tech for a living and have rebuilt my fair share of heads and knew it was the valve stem seals that were hardened from age and miles. I wasnt ready to tear into it and redo the seals so i gave the valvoline high mileage a shot. I was impressed, within two oil changes my full minute of smoke on cold starts was reduced to a few light puffs on start up. Maybe now i can make it to 450k before i am forced to tear into it lol. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Greasy Spoon
High mileage oil
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