Type of oil in Newer Honda Outboards?

[steelbiten]

I'm drawing a blank..........

What's the recomended oil for a new Honda Outboard? My dealer suggested the Castro gtx 10w30 I believe or maybe the 30 weight... I can't remember. I do this every year about now. I gota write this down on the motor somewhere! :shrug:

Thanks for any help...........

[Hagar]

Owners manual for my 4 stroke 9.9 says to use a 4 stroke automotive detergent oil. SAE 10-30. Honda recommends you use the API service catagory SG, SH or SJ with the "starburst" certification mark.

[Bait O' Eggs]

On my new 225 Honda I put Chevron 10-30 in it. When I was at the dealer later I saw they had a pallet of chevron 10-30 sitting there and they told me they would have put the same oil in it.

[ICHTHYDEMON]

If it were my Honda,I'd use Mobil 1 10-30. Not that a [potty mouth] oil won't work,but I'm a firm believer in synthetics. I run them in everything I own.

[steelbiten]

Here is an article that supports your thoughts. It appears as if the Mobil 1 has the greatest viscosity retention in a head to head test in a Motorcycle engine.

Motorcycle Oils vs. Automotive Oils (http://www.xs11.com/stories/mcnoil94.shtml)

[ICHTHYDEMON]

I wonder why my post what edited? I typed in D i n o,but without the spaces,and it came back as a potty mouth word?

[Phil Layer]

Hehehehehe....

There used to be an idiot on ifish with that name. He got banned and, apparently, edited off the site.

:cheers: