Quote:
Originally Posted by 80stech
Valvoline is excellent oil but yes, the service rating is the thing to watch. you might try using 1/2 synthetic and 1/2 not. Works really well, enigine will run quieter and burn less oil and it's more friendly to the rubber seals. The only draw back is cranking when it gets down to -30 or so. I think Valvoline still makes a synthetic blend but you can also mix yourself. I just try to to stick to the same brand when mixing.
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What's the advantage of mixing 1/2 and 1/2? Why bother when you can use M1 0w40 without issues and can be had for dirt cheap (with rebate) at Wally World? I've been running various M1 since the X was out of the 4 years "free" maintenance (since 2008). My last 3 oil changes using M1 were dirt cheap ($50 for two 5Q jugs with $24 rebates)! M1 runs these rebate programs at least once per year
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2004 X5 3.0i
Born 02/04
Delivered 03/04
Last edited by dkl; 05-12-2016 at 03:32 PM.
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