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im close to change my oil againg and im using Valvoline Synthetic 5w-30 and my car has 70289miles already should I still use the synthetic or should I start using High Milage synthetic..........should I change brands........which bransd are better....and also im also going to change my spark plugs are there any special care before and or after changing them.........
 

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I work at Valvoline I change oil all day everyday my advice would be to start using the maxlife full synthetic its awesome we hear nothing but good things about it as for brands mobil 1 and valvoline are rated 1 and 2 on the scale so id stick with what you have been using
 

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You'll be fine running synthetic still.

Nothing real special you have to do before or after plugs...
 

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For the money it's hard to beat mobil-1...walmart sells a 5 qt jug for $23.

For plugs check the gap even for pre-gapped plugs just to make sure they're within spec. Also always use anti-seize on the threads and torque to spec.
 

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For the money it's hard to beat mobil-1...walmart sells a 5 qt jug for $23.

For plugs check the gap even for pre-gapped plugs just to make sure they're within spec. Also always use anti-seize on the threads and torque to spec.
couldn't have put it better myself... :-D
 
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