Originally Posted by jasonille
It is for a Slash 4x4 ultimate I have a bottle of Lucas 75w 90 oil in the garage but didn't want to do damage especially when nothing is wrong now. I was worried about it eating away at the o ring but wasn't sure. Thanks
Better safe than sorry indeed. If you need advice about what grade oil to use, might be smart to ask your question here: http://www.rcgroups.com/forums/showt...t=slash+thread
This is the main Slash thread, and may already contain the answer to your diff question. If not, you could ask there for more advice about this car.