For those lucky enough to be driving a Zetec powered 7...
I've been running on Valvoline Durablend - 5w-30, with no real problems.
But, I have just changed to Castrol Magnatec 5W-30 fully synthetic, with impressive results.
The engine is quieter over all, feels 'free-er', and really does seem to run better. The pick-up from cold is better, and when warm there is an obvious improvement in pick-up out of corners.
I made the change for no real reason, other than I needed an oil change as I had replaced the dip stick, and needed to re-mark the 5L point.
Really glad I did now!
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