Is it ok to ues that lucas oil stabilizer in my fd? Im trying to diagnose a knocking sound, I thougt it may get quiter if I put some in there

 

I've used the synthetic oil treatment, with synthetic oil and it works well. I haven't had any problems. and it seems to make things run smoother. what mod's do you have ? the knocking noise could be detonation so I would be concerned and do not boost the car at all until you get it checked out.

Jeff

 

Its got 3 in exhaust, greddy fmic, apexi power fc, hks dual mushroom intakes, greddy tb elbow, koyo radiator. Thats about it. It sounds like its knocking, but runs, drives and boosts fine, with no smoke or hesitation.