Dealership guy here, so I'll chime in. Technically, Honda can void your warranty if you use a different fluid from what they recommend. However, they'd have to prove that the cause of the issue was from using different fluid and rarely is it a case where that happens (i worked for honda for 5+ years and can tell you ive never saw a warranty claim denied as dealerships LOVE warranty work - guaranteed $ from honda, extra tech hours, etc etc). Now if its a situation where youre tuned with aftermarket parts and theres an issue, sure the possibility of a denied claim is high but were talking about fluid here lolBut I read somewhere if something happens to the transmission and you have other fluids and not the honda that could void warranty claims I don’t remember if it was here or on the 10th gen forum.
Thanks for that clarification is just that I see many people use the synchromesh but also saw that couple of times. The dealer scratched my wheel and wanted to blame it on me that I take it to a car wash that car was maybe 2 weeks with me when my tire blew up. So I really don’t trust their judgment too much. But thank you for your input now I know it’s wasn’t probably true what I read.Dealership guy here, so I'll chime in. Technically, Honda can void your warranty if you use a different fluid from what they recommend. However, they'd have to prove that the cause of the issue was from using different fluid and rarely is it a case where that happens (i worked for honda for 5+ years and can tell you ive never saw a warranty claim denied as dealerships LOVE warranty work - guaranteed $ from honda, extra tech hours, etc etc). Now if its a situation where youre tuned with aftermarket parts and theres an issue, sure the possibility of a denied claim is high but were talking about fluid here lol