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Old 17 December 2017, 12:31   #1
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putting gas & oil into tank

what is the proper procedure for putting gas & 2 stroke oil into the gas tank when you want to fill up at a gas station that is on the water ? oil first or gas first when you don't know exactly how much gas is in the tank
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Old 17 December 2017, 12:49   #2
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I think I'd add some oil before the fill then top up to the correct amount once full then you know the bulk of the petrol is mixed
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Old 17 December 2017, 12:55   #3
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Good idea,thanks !
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Old 17 December 2017, 14:56   #4
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with our saws I always do oil first
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Old 18 December 2017, 05:50   #5
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Quote:
Originally Posted by mickhodapp View Post
what is the proper procedure for putting gas & 2 stroke oil into the gas tank when you want to fill up at a gas station that is on the water ? oil first or gas first when you don't know exactly how much gas is in the tank
you dont need to know how much is in the tank just what you're putting in keep it to round figures so it's easy to measure the oil out. doesn't matter if oil first or last it mixes. i found it better to have two tanks and mix a full tank every time a little too much oil won't harm the engine in anycase.
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Old 18 December 2017, 07:36   #6
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Thanks for the reply!
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Old 18 December 2017, 07:40   #7
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you dont need to know how much is in the tank just what you're putting in keep it to round figures so it's easy to measure the oil out. doesn't matter if oil first or last it mixes. i found it better to have two tanks and mix a full tank every time a little too much oil won't harm the engine in anycase.

However if you consistenly over oil, you may end up with an issue
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Old 18 December 2017, 15:27   #8
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To avoid over oiling having two tanks just top one tank up to empty second tank then re fill get a measuring jug to get the ratio correct. Don't forget on pre mix that the ratio of oil covers the full rev range so at low revs it's over oiled but not an issue with modern oils
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Old 18 December 2017, 16:37   #9
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To avoid over oiling having two tanks just top one tank up to empty second tank then re fill get a measuring jug to get the ratio correct. Don't forget on pre mix that the ratio of oil covers the full rev range so at low revs it's over oiled but not an issue with modern oils
That's ok unless the op has built in tanks which was my assumption if he's filling up dockside
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Old 18 December 2017, 17:32   #10
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That's ok unless the op has built in tanks which was my assumption if he's filling up dockside
In that case BK I would always fill with measured oil to fuel just need keep it simple litres wise, to be honest in the old days you avoided long periods of tick over to prevent the plugs oiling up not a problem with modern oil in my
Expeariance so a 100-1 mix fluctuating +or- 5% isnt going to be a big deal I would make sure periodically I ran the tanks very low easy with two tanks.
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