For anyone still running a 2 stroke……

[Duffman]

Thought this was interesting……O2 sensor comparison….

Pic 1 - one season running Yamalube Oil

Pic 2 - one season running Pennzoil XLF Synthetic

Night and day!

[wyldbillnj]

When I had the Mercs still, I switched over to the Penzoil and it worked well. never had an issue with it. Never really noticed any buildup or other detrimental effects from it. Besides...it was way cheaper than Quicksilver and IMO better than West marine oil

[hammer4reel]

Friend of mines father was VP of Quaker state .
He told me EVERY manufacture of synthetic oil comes out of the same tanks

Only difference is the color of the dye injected into the container .
That’s why every brand has their own signature color

[Gerry Zagorski]

Thought this was interesting……O2 sensor comparison….

Pic 1 - one season running Yamalube Oil

Pic 2 - one season running Pennzoil XLF Synthetic

Night and day!

Wow that's a huge difference!