Rubber pushrod seal ?

[Andris Golts]

Hi all when installing Dubro or Zippkits rubber pushrod seals should marine grease or vasoline be used to pack the rubber seal? Regards Andris Golts.

[tlandauer]

I like to use silicone based oil as it is harmless to rubber, don't know about marine grease, but vaseline is petroleum based. Not saying that it is bad for rubber, but as a general rule, I don't use WD-40 on rubber either. For instance, I use RC Car shock oil when I install water cooling jacket over a motor.