Oil Mix for a 2000 C60TLR

[G3Boats]

I bought a low hours Yamaha 2000 C60TLR and know the oil mix is 50:1, but how many oz of oil per gallon is 50:1 for this engine I am told each manufacturer has a different mix of oz per gallon to get 50:1 for their engines.? I bought an oil mix bottle, but stupidly did not read the data on it and it is for Merc and Johnson and not Yamaha. Thanks for the help.

 

[robert graham]

It's just not all that particular, but 2.6 ounces of oil per gallon of fuel will give you the 50:1 ratio.....I use 16 ounces in a 6 gallon can...close enough!

 

[G3Boats]

I thank you so much. I found some ratios, and it was a percentage of quarts for a variety of gallons. After messing with my limited math for a very long time, I finally came up with 2.56 to 6 ounces, depending on the calculator, and needed confirmation that I was not way out in left field. The guy who had used the motor has been using 19 ounces of oil for 5 gallons the whole time he had the motor, but did use Ring Free. I guess too much oil all this time cannot do much damage, but what do I know. Should I, with the new formula, just add more Ring Free for awhile? From here on I will be using 13 ounces per 5 gallons.

 

[robert graham]

I doubt the extra oil hurt anything...just continue on with your 50:1 and your Ringfree....

 

[99yam40]

I do not see how it can be different ratios for different brands of motors, as 50 to 1 is just 50 ounces of gas to 1 ounce of oil.

Your mixing bottle has a chart for 50 to 1 , just put oil in it up to the line that has the correct gallons of gas you are adding it to

 

[achris]

.... I am told each manufacturer has a different mix of oz per gallon to get 50:1 for their engines.....

Unless each manufacturer is using a different system of oz to gallons, this is 'horse-hockey'!!!

However, that said, there are 4 different units to consider here. US gallons, UK gallons, US ounces and UK ounces....

Simply, 1 US gallon (I'll use US gallons since you're probably in the US) is 128 us oz... That's a constant, doesn't change, regardless of the manufacturer. So, for 1 US gallon of petrol, you add 128/50 us oz of oil... That's 2.56, close enough to 2-1/2..... If you have a Jap engine, they may be using proper gallons and ozs... In which case one standard gallon is 160 standard ounces, so your 50:1 ratio would require 3.2 ounces of oil to each gallon of petrol....

So, choose your units of measure carefully...

Chris.....