3 ms·
The author's views are consistent with those of the (air cooled) Porsche engine building community. Here in the US, Brad Penn 20W-50 and Valvoline VR-1 Racing
by chrisbennet 16y ago
The author's views are consistent with those of the (air cooled) Porsche engine building community. Here in the US, Brad Penn 20W-50 and Valvoline VR-1 Racing 20W-50 have the necessary Zinc.