Oil Mix for big twin

[ryendube]

Re: Oil Mix for big twin

Absolutely not. Synthetics probably lubricate better, make less smoke, stink and carbon and are generally biodegradable. That is it. Oh, and they cost a lot more.

The notion that they can therefore do an acceptable job in leaner mixes is not logical.

Im not a boat mechanic I definetly do not question your knowledge of them but I am a mechanic and what you just said does not make sense. If it lubricates better doesnt burn like reg oil it IS logical that you can use less.


those years also said non 2 stroke oil was acceptable at 24:1 , how well does that lubricate?


Sorry i dont want to start a debate I just wanted feedback on what others have use in REAL LIFE situations and their results. I dont put stock in old recomended ratios as things have changed drastically since then, gas and oil. yes its the same motor but even then it had recent changes and only after years of a product being out in Real world applications can you see how it reacts.

 

[ryendube]

Re: Oil Mix for big twin

Just for clarification, there is no way that your motor wouldn't start because you were running 24:1 instead of 50:1 mix.
I run mine 24:1 and would not knowingly purchase a 50's motor that had been run at 50:1. I've got a couple of the 50's motors that I've worked on and the only one that I'm not satisfied with, the owner said his son ran it at 50:1. It was a '55 10hp and had a lot of scoring and scuffing on the cylinders. It still runs, just not as nice as it should. Your motor may have all roller/needle bearings (I'm not sure) but it is still 52 years old. I'd give it the full 24:1 just because of all those years of wear.
JMO,
JBJ

as for starting I was thinkin about it and it was probly more not changing the carb settings after doubling the amount of oil in the mix.