I use the ktm racing motorex brand, I get a 4 quart jug for $90 on rocky mountain atv... During the warmer months il change every 6-7 hours, during the winter il change evry 10-12 depending on how hard im riding...
Lets talk oil level...
I think there's a lot of confusion surrounding when to accurately judge the engine oil level, A.) when its cold B.) After warm up C) after a hard ride
Ive found when its cold is the best because when I warm it up, ive noticed the level in the sight go down after shut down. My guess is oil collecting in the head and (oil lines if you have a oil cooler)..
After a hard ride, the oil has a lot more viscosity and just a minute or two after shutdown I will notice a higher sight level, similar to what I saw b4 I first started up the bike.
Lastly, im curious to hear from, people who own both an xc and sx to comment how how the sight level differs and how much oil they put in each bike...
Those who have oil coolers- does your oil volume change?