A high-zinc, multi-ester 20W-50 developed for classic passenger cars, including those run under racing conditions. The elevated ZDDP anti-wear additive package is aimed at older engines with flat-tappet camshafts that need extra protection modern low-zinc oils no longer provide.
| Viscosity | SAE 20W-50 |
|---|---|
| Base Oil | HC-synthetic |
| Approvals | High-zinc (ZDDP) formulation; no formal ACEA/API approval listed |
| Pack Sizes | 1L, 5L |
Classic and vintage cars specified to run a 20W-50, particularly those used on track or in competitive driving where cam and lifter wear protection matters.
Older engines with flat-tappet cams rely on ZDDP (zinc dialkyldithiophosphate) in the oil for anti-wear protection at the cam-lifter interface. Modern oils have reduced ZDDP levels to protect catalytic converters, which classic engines don't have, so a higher-zinc formulation like this one gives them the protection they were originally designed around.
Yes — it's formulated for classic passenger cars generally, with the racing-condition testing giving it extra margin for spirited or track use.
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