Oil filter oil?

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Active Member
Apr 12, 2012
Has anyone used a heavy weight gear oil to oil a foam filter? I remember back in the stone age I used to oil my 80cc 2 stroke with engine oil. I was just wondering if a 75w/90 could do the trick or if I should stick to paying for specific foam filter oil.


Active Member
Apr 12, 2012
I used to use Torco gear oil or honda red bottle on my uni filter on my 86 ATC250R, now I use uni spray foam filter oil when I am running my uni filter on my TRX450, K&N in the sand and Uni foam filter in dusty conditions


Active Member
Apr 24, 2012
I didn't have anything better when I still had my stock foam so when I first got it I cleaned it and used some Lucas Diff Weighted oil. It ran ok but I'm sure it doesn't work as well as specific oil would. I run a K&N now so there is no way around paying for the proper oil.