completely off the topic.

[Clint307]

Hey guys / gals, I have a question that's completely unrelated to the rc topic but I figure we have allot of talented people on the forum that very well could know this question. So I'm replacing the fork seals and dust covers on my 86' Honda Magna and I'm reading on some other forums not to use ATF fluid in the forks and the bike shop telling me to use ATF so is there a reason not to and what should I use I've been told to use 15w to 20w fork oil? Any help would be awesome!