Castrol EDGE 0W-40 A3/B4 Full Synthetic Motor Oil, 5 QT
$18.34 at Amazon or Walmart (or less with Amazon Subscribe and Save 5%/15%)
AMAZON LINK
WALMART LINK
@ 19.31, but now slightly cheaper at $18.34 (or less with subscribe and save at Amazon)
Meets: Mercedes Benz 229. 5 and 229. 3; Porsche A40; VW 505. 00 and 502. 00; Ford WSS-M2C937-A, PSA B71 2296