What is the best 2 Stroke Oil?

[IABassin]

So my 07 Yamaha 250hp HPDI is getting rebuilt this winter and I want to make sure I am running the best reviewed stuff on the market next year, what are your guys thoughts? Thanks in advance!!

[yam911]

100% synthetic anything rated TC-W3. Won't be Yamalube.

[n_gong]

You might ask the shop doing the work for you, the warranty may depend on the recommended oil.
Nelson

[kk4iz]

I would not run 100% synthetic till it was broke in, around 100 hours. Synthetic will not let the ring seat..My Choice of synthetic would be AMSOIL they have been around for a long time, longer than any other.

[Triton420]

Have been running amsoil in mine since I had it. No carbon buildup in my ox66

[IABassin]

I would not run 100% synthetic till it was broke in, around 100 hours. Synthetic will not let the ring seat..My Choice of synthetic would be AMSOIL they have been around for a long time, longer than any other.

What should I run until its broken in then?

[ClarkBird]

What should I run until its broken in then?

I’m not a believer of that statement. I run Amsoil and have since day one in a new powerhead. No issues here.

[CJ1]

A two stroke is a little different than a 4 in this regard, I run full synthetic even for break in. It will take a little longer for the rings to seat but they will with no bad effects like a 4 stroke. You will see a small jump in compression when they seat. Mine took about 10-15 hours for the compression to come up. Normal with a marine 2 stroke. The synthetic runs so much cleaner I would use a blend if you are concerned. Cj

[jdwo2212]

May get slayed for this one but i been running the cabelas semi synthetic since my power head rebuild and its been good to me. A lot of people use it and the price for it is fair. Once or twice a year they run a $10/gallon on it, and i load up then. There may be better ones out there but this seems to burn clean, quiet, and no issues 50 hours after my rebuild so far... If i may ask, who is doing your rebuild? Local mechanic or sending it out?

[IABassin]

May get slayed for this one but i been running the cabelas semi synthetic since my power head rebuild and its been good to me. A lot of people use it and the price for it is fair. Once or twice a year they run a $10/gallon on it, and i load up then. There may be better ones out there but this seems to burn clean, quiet, and no issues 50 hours after my rebuild so far... If i may ask, who is doing your rebuild? Local mechanic or sending it out?

Yamaha mechanic that I know from Wisconsin, He does a lot of rebuilds so should be smooth.

[HookedAgain!]

May get slayed for this one but i been running the cabelas semi synthetic since my power head rebuild and its been good to me. A lot of people use it and the price for it is fair. Once or twice a year they run a $10/gallon on it, and i load up then. There may be better ones out there but this seems to burn clean, quiet, and no issues 50 hours after my rebuild so far... If i may ask, who is doing your rebuild? Local mechanic or sending it out?

When do they run the sale? Tried during black friday but wasn't on sale....

[jdwo2212]

I dunno. Last year it was in the spring. Someone usually announces it here. Lol. Thats how i found out.

[jdwo2212]

Yamaha mechanic that I know from Wisconsin, He does a lot of rebuilds so should be smooth.

Cool. If not i coulda suggested a guy thats pretty close. (Dubuque) but if you got a guy ya trust thats great.

[IABassin]

Cool. If not i coulda suggested a guy thats pretty close. (Dubuque) but if you got a guy ya trust thats great.

Thanks for the help! He’s done it for 40 years so it should be good! If anything changes I will PM you.

[Tee1967]

I called Yamaha on this same topic about 4 months ago and asked if swapping to quick silver full synthetic would be better than running the Quicksilver premium that I cut run and was to NO the person I spoke with recommend me to continue to use the Quicksilver Premium. He said that was one of the best oils I could use in my 300 HPDI

[DeGraaf]

I called Yamaha on this same topic about 4 months ago and asked if swapping to quick silver full synthetic would be better than running the Quicksilver premium that I cut run and was to NO the person I spoke with recommend me to continue to use the Quicksilver Premium. He said that was one of the best oils I could use in my 300 HPDI

????????????

[Lanierspook]

If you want the best, it is Bel Ray Marine HP 2T, The manufacturers oils come from big refiners, Citgo makes quicksilver.