Thread: Pennzoil Dexron VI

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  1. #1 Re: Pennzoil Dexron VI 
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    why have I always heard people say to avoid synthetics as they often cause transmissions to start slipping? Does this only really apply to a higher mileage trans? Never used synthetic myself for this reason...
    Last edited by _nick_; 10-28-2008 at 11:51 PM.
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  2. #2 Re: Pennzoil Dexron VI 
    GXP Level Member Zef_66's Avatar
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    Quote Originally Posted by _nick_ View Post
    why have I always heard people say to avoid synthetics as they often cause transmissions to start slipping? Does this only really apply to a higher mileage trans? Never used synthetic myself for this reason...
    Never heard that. My transmission is stock and original in my car. I am using Valvoline Dexron VI fluid in my tranny now and it is full synthetic. Still runs fine.
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