Just got a new 400ex, I want to keep it in top condition for a long time! I have a few questions, I no this is a frequently asked one but what is the absolute best oil for a 400ex and do u put any additives in it? What type of gas do u put in it, and do u use any fuel line/system treatment? What type of chain loob do u use and do u wax ur chain? And any other helpful info would b great thanx!!

 

it's hard to get a solid answer on oil so i just get the most expensive from the dealership. that way if anything goes wrong with that i can blame it on them.

i use sae 90 gear oil i bought from my locar john deere dealership

i fill er up with 93 octane

 

Good way is too buy expensive oil at the honda dealership. You get what you pay for. I put spray on chain wax on my chain before and after every ride so it can thicken and protect your chain. Use premium gas Octane 92 or higher so 93.

 

Get the honda oil, no question about it.