10w40
SAE 10w30.
The "recommended" vicosity oil is 20w50, but check with a shop other viscosity oil may be used.
10w40
4.9 quarts
10w40
If you are referring to the viscosity of the oil, 10w40 is the suggested viscosity for the Honda CRF50. Also try to switch to Amsoil and see the difference.
About 5 quarts
Check the oil filler cap or the owners manual for recommended viscosity.Check the oil filler cap or the owners manual for recommended viscosity.
I have a rubicon 2004 the oil capacity is 5.2 to 5.5 quarts. You have to put 5 quarts in and crank the 4 wheeler and let it run for 1 minute and check the oil as soon as you turn the engine off to see if you need to add .2 or .5 to your rubicon. The ? is about a Honda Rubicon ATV.
10w40 will do.
Your owners manual will have a recommended oil viscosity to use in certain temperatures. Find your average temp on the chart and then use the appropriate oil
The 2006 Rubicon holds 4.9 qts when you change it. It is for both the engine and transmission.