LCGB Forums

Okay all these gas oil mix make my eyes cross. Here in the states we go by ratio. i don't trust my math. i assume you take 3 or 4 % of a gallon and that's the amt of oil. But to simplify could someone give me the ratio. I think I'm going with 3% mix. I know that's a debate in itself. not going down that road at this time.

Thanks
eyeguy

Strangely enough, we also have a very similar method of calculation over here in the UK. We call it mathematics or 'maths' for short. Just the one 's'

We also use ratios but I'm not sure of what it is you are asking, despite my mild jesting above.

Are you asking for, say, the actual amount of oil in ounces to be added to a US gallon?

If so, to obtain a 3% ratio of oil in a US gallon would require 3.99 (call it 4) fluid ounces or 114 millilitres.

To obtain a 4% ratio of oil in a US gallon would require 5.33 fluid ounces or 151 millilitres.

I really do hope that helps

what I'm asking is the ratio. for a 3% mix is it 32:1? For a 4% is it 40:1. sorry for my ignorance.

eyeguy

AFAIK,2% is 50:1,3% is 33:1 and 4% is 25:1
I am sure someone will confirm this.
Or tell me I am wrong

Dave you are correct.

1% is 1 part per 100, hence 'per cent'.

3% is 3 parts per 100 or 1 part per 33.3
4% is 4 parts per 100 or 1 part per 25 etc.

I'd get an oil measuring jug however to save you having to guess -Polini do an excellent one all marked for various oil ratios.

http://www.racing-planet.co.uk/measurin ... Ou6CVKZPow

eyeguy wrote:what I'm asking is the ratio. for a 3% mix is it 32:1? For a 4% is it 40:1. sorry for my ignorance.

eyeguy

I think any ignorance is on my part, but I couldn't figure out the question, so it's me that should be sorry

The formula to obtain percentage (for any ratio) = 100 ÷ n (where n is the ratio to be obtained)

Example, if 3% is required = 100 ÷ 3 = 33.3:1

Example, if 6% is required = 100 ÷ 6 = 16.7:1

Are we really having this conversation ? Again.

sorry guys, just had to know for sure. No hard feelings for any replies. you guys are always a big help. so I can take it

thanks
eyeguy