Outer Limits 4x4 Board

can someone please tell me exactly how much marine 2 stroke oil i need to add per litre of fuel for my boat motor if its supposed to be 100:1 mix please and thanks in advance!

its just a ratio

hence

1:1 would be 1 litre to 1 litre

10:1 would be 10 litres to 1 litre

100: 1 would be 100 litres to 1 litre

so assuming you mix in 2o litre drums. fill with 20litres of petrol and add 200ml oil

10 litres add 100ml

5 litres add 50 ml

cheers mate

or, 10 mil of oil per one letre of petrol. Ratios drive me crazy too I just give the lawnmower a squirt or two, if she's blowin smoke, its got enuff

RockyF70 wrote:or, 10 mil of oil per one letre of petrol. Ratios drive me crazy too I just give the lawnmower a squirt or two, if she's blowin smoke, its got enuff

thats one way to do it.
i used to hate having to do it for my boat when i esed to go out on it.
its better to put a little extra rather than too little. more oil will just make the plugs dirty.

j-top paj wrote:

RockyF70 wrote:or, 10 mil of oil per one letre of petrol. Ratios drive me crazy too I just give the lawnmower a squirt or two, if she's blowin smoke, its got enuff

thats one way to do it.
i used to hate having to do it for my boat when i esed to go out on it.
its better to put a little extra rather than too little. more oil will just make the plugs dirty.

and mean it wont start when your in the middle of the bay with that storm front rolling in >_<

what a great time to clean a spark plug!

thanks a million guys! chucked in the amount you guys said and took it out for a couple of hours on Georges River and damn it went like a dream! i took 2 of the kids with me and they got as much rush out of it as me! again thanks and good work!

100:1 is a pretty low oil ratio....

not if its a newer outboard.
my new mercury uses 100:1 and my older one uses 50:1

Bloke I used to work with was waiting in line at a servo to pay for his fuel. Woman in front had her 5 litre can, and asked how much oil she should put in - she knew she wanted 50:1.

Dufus behind the counter said "That means you need 50ml of oil per litre of petrol - I'll do it for you."

Mate spoke up - said "Nah mate, that's not right!" to be treated to a barrage of abuse along the lines of "I work in a petrol station, I know how to do this stuff, don't you tell me how to do my job! "

What do you do?



Scott

j-top paj wrote:not if its a newer outboard.
my new mercury uses 100:1 and my older one uses 50:1

Thats so thing wear out Quicker

My trials bike ran 80:1 ran like a dog on anything less.

better oils now days.

Chad