Can someone tell me what wt. of oil should be use in ATA-125 and 150's? Diesel oil? Also, how much oil should be used for the 125 and 150 in ounces?
Thanks!

 

For the ATA-125, I use 15w-40 (Shell Rotella or Wal-mart "SuperTech"). I put 700ml in and that fills it up to the top mark on the dipstick. The diesel oil has no additives that would cause a wet clutch to slip. Others here use Valvoline 10w-40 without any problems. The key is to change the oil often. It is what keeps these little machines alive. As for the 150cc, I don't have a clue.

 

Sorry I didn't see that you wanted ounces.

700ml = 23.67 ounces

 

I also use the 15/40 from wallymart, I would suggest never use 10/40 in anything, worst Viscosity ever! If your riding in real hot outside temps of say over 100deg I would switch to 20/50!

 

Yep, the newer Taotao machines recommend 15w40 right on the machine's name-plate. The 110's and 125's do get pretty hot given you've got to force air over the engine to cool it, so a 40wt (or even a 50 like said) is a must.

The 150cc does a better job of cooling itself being fan cooled, but I still use a cheap 15w40 in it. Is there any 'cheap' oil anymore? It's all like 3-4x what it used to be.

Joel