Ok, i'm pretty new to hondas. I changed my oil yesterday and realised i put 5-20 instead of 5-30. Is that a problem? I wouldn't think so, but i'd like to make sure. Thanks

 

The newer hondas actually call for 5w-20. You should be fine. Just be sure to check for leaks and check the oil level regularly to make sure it's not leaking anywhere.

 

Just wanted to be sure, thanks.

 

It shouldn't be a problem, but thicker is better in the summer. If you notice that your oil temp is more than a tick or 2 higher, get it changed. If there's no problem, use what you are supposed to on the next change.

 

I've heard that Honda has retroactively changed the oil spec to 5w-20 for Accords back to '98(maybe even earlier).

 

Me too. I still use 10W30 though since I live in "hell on earth" Mississippi. It's about to start getting HOT and HUMID here now that summer is coming. And the CEO of my company still makes us wearsuits (with tie)every day!

 

Ihave heard Honda's switch to 5W20 is just to increasethe MPG a bit, and in reality 5W30 is what most Honda engines are/were designed to use.

 

Seems strange. What would you expect that the bearings were designed for? I'd use what is printed in the original owner's manual.

 

I believe crvone has it right. So back when I still had the '98 Accord I continued to use 5w-30. But for a one-time mistake, it can't be too bad.

 

I agree about it not hurting for 1 change. I also agree that the change was to help MPG, but I think that the engines since the change have tighter clearances in the bearings since they are intended to have thinner oil.