Polaris ATV Legend
Join Date: Feb 2009
Location: Washington State
absolutely, you can always go up in DOT fluid, you just cant go down. Any machine that requires DOT3 can use a DOT4 because a DOT4 has a higher boiling point. But if your machine required a DOT4, you wouldnt want to use a DOT3, as you may boil the DOT3 fluid....so you can use the DOT4 no problems.
Now, DOT5 and DOT5.1 you need to starting checking labels, because some are a mineral oil and that woundnt work. But a DOT4 will be just fine.