exmark93
RCTalk Talkaholic
so I've got a shopping cart going on tower hobbies and i need some fuel. i run sidewinder 20% nitro with 10% castor. I've been worried lately that 10% castor is not enough oil for good lubrication. so i wanted to step it up to 12% castor but they are out of stock. so should i wait for the 12%, or, is 10% good enough?