Re: 2 cycle oil addvise
Dave, no problem with your question here's photos of a 1987 25 HP that has always been run on Mercury oil at 50 to 1 and never decarbed as you can see little or any carbon a normal looking exhaust tube, finally the chrome chipped on the cyl. walls and is being repaired.
As you can see there is very little carbon in the exhaust tube. The manufacture don't surprise me, most cheaper oils are manufactured by a large company to lesser specs.
JB, All I can go by is what the customer tells me and he says that he changed to Super Tech 3 years ago and mixes at a 50 to 1 ratio, why would he lie? I have seen many engines destroyed by lack of oil and had people try to say the oil was mixed properly. We run some of our racing engines at 12 to 1 and in 50 years never seen one look like the first exhaust photos I posted. Although we do prefer Mercury oil in our engines we have used Texaco, Marathon and Shell with no bad side effects, So we are not strictly Mercury nor are we dealers or shareholders pimping a product, as some have on iboats.
