Quote:
Originally Posted by Longhorn Man
there's a few reasons not to run synthetic... but no real good reasons. (other than burning and leaking oil as mentioned)
The zink comment above holds no water, becouse there are no 'over the counter" oils on the market (including rotella) that contain enough for non roller motors.
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That is a matter of opinion. Valvoline VR1 still has zinc and is available over the counter. For an all out high performance engine more zinc may be desired but for a stock to mild street flat tappet motor it is plenty.