1967 mustang oil

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valdustina@cox.net - 19 Dec 2006 01:50 GMT

I know that the oil change was with Valvoline 10W-30W. I am not sure if
they put the full synthetic oil in at the time. Can I mix full
synthetic with regular oil since it is a quart low. Would the synthetic
be the best for the next oil change and further use. The 289 has 79,000
original miles.

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.boB - 19 Dec 2006 04:12 GMT

> I know that the oil change was with Valvoline 10W-30W. I am not sure if
> they put the full synthetic oil in at the time. Can I mix full
> synthetic with regular oil since it is a quart low. Would the synthetic
> be the best for the next oil change and further use. The 289 has 79,000
> original miles.

Yes, you can mix them. Oil makers do it and call it a
"Blend".
I think if you drive the car a lot, especially in harsh
conditions, then synthetic oil is definatly better. I use
regular Penzoil in mine, because I hardley ever drive it. Just
change the oil and filter every year.

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.boB
2006 FXDI hot rod
2001 Dodge Dakota QC 5.9/4x4/3.92
1966 Mustang Coupe - Daily Driver
1965 FFR Cobra - 427W EFI, Damn Fast.

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