Changed the oil in my 04 Foreman - Page 2 - Honda ATV Forum
Honda FourTrax Discussions for the FourTrax Rincon, Foreman, Rancher, Recon

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post #11 of 12 (permalink) Old 06-06-2019, 06:33 AM
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Originally Posted by fishfiles View Post
I been on the site a long time and still don't know what a sig line is or where it is found ----- I got a few 450s and never did call them Foreman ----- live and learn

I had people tell me , don't put synthetic in a engine that has hours on it , if you are going to use it , start when the engine is new , I put Amsoil in my 300 , it lasted 1 1/2 rides after that ----coincidence maybe
That's probably a good thing on the signature, sounds like you've got too many machines to list out anyway

I've switched plenty of older machines that had been using conventional oil over to synthetic with nothing but positive results. The risks come in if the older machine had been run with oil with poor additive package or had a lot of deposits built up, and then switching over to a synthetic with a quality additive package and it starts breaking up all the old deposits suddenly and starts clogging things. That's my understanding at least. Can happen with automatic transmissions that went way too long without atf being changed, once heavy deposits build you can cause damage by changing out with new atf which causes all the old deposits to let go at once. I have seen cases where when changed out just a couple qts at a time, the deposits dissolved out slowly and after doing that many times, the tranny got its 2nd life.
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2004 TRX400FA (Rancher 400AT)
MotionPro twist throttle kit
12" handlebar mounted light bar
rear rack wheelchair carrier
Cycle Country 48" plow w/ KFI hybrid mount
Champion 3000 lb winch w/ synthetic rope
23" Titan 489's all around (saving clutch)

2011 Grizzly 450 EPS

Others in the family: '04 TRX250TE, '85 TRX250 Utility (X2), '05 TRX90, '06 TRX500FA, '95 TRX400FW,' 88 TRX125
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post #12 of 12 (permalink) Old 06-06-2019, 09:59 AM Thread Starter
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Join Date: Jul 2018
Location: NY
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I'm sure it is KN-113. Got it from advance auto who cross referenced the wix #, and said they had it but when I got to the store and couldn't find it. Found one at another store though. Don't really like K&N but it's all I could find around me.
What other filters are you guys using for the 2004 450's?

2004 TRX450FE Fourtrax Foreman
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