F Filippo Member : Mazda Protege 5 Sep 25, 2009 #21 was burning with 5-30 @ 220k, started using 5-40 and notice a great difference in oil consumption!
M MazdaSpeeder Member : Protege5 (5-spd) Sep 25, 2009 #22 I'm definitely switching to 10w40 now...if it's good enough for EDM, it's good enough for me.
