personaly i wouldn't because its very thick and could cause damage
avoid fully synthetic oil use semi
There is a few oils you can put in a Apache RTC 160. The best oil to get would be Motul 300V 15W50.
2002 Toyota 4Runner Sport I use Mobil 1 15w50 synthetic with 5k change intervals; all other fluids are replaced using Red Line Racing synthetic products.
Harley recommends their own Syn3 synthetic oil or their regular H-D brand 25W50 fossil oil (both made by Citgo), but I use & recommend Mobil One 15W50.
Transmission: 15W50
KTM recommends Motorex Top Speed 4T 15W50
0.7 L Motorex Top Speed 15W50
KTM recommends Motorex Top Speed 4T 15W50.
Any good quality 10w40 or 15w50 (for colder climates)
KTM recommends Motorex Top Speed 4T 15W50.
Transmission: Motorex Top Speed 15W50
0.7 liters engine oil using Motorex Top Speed 4T 15W50.