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Open Forum / Re: VP Powermaster 10% Nitro ; 18% Oil Mean & Green
« Last post by Colin McRae on May 08, 2024, 07:07:33 AM »Kafin, your math seems correct on a gallon basis.
The OS 46LA owner's manual recommends 20% oil but also says do not go lower than 18%. And the manual says full syn can be used but is less tolerant of lean operation.
I would add the castor. And be sure no not set the needle too lean on the ground.
The following is on a quart basis (multiply by 4 for gallon basis). To add castor to the mean and green fuel:
For 20% total oil, the mix would be 31.2oz of fuel / 0.8 oz of castor (resulting in 12% castor in the fuel blend)
For 22% total oil, the mix would be 30.4oz of fuel / 1.6 oz of castor (resulting in 23% castor in the fuel blend)
I would use the 22% oil blend. I have run LA's at 23% oil in the past (Brodak fuels) with no issues. I currently run my LA's at 20% total oil (32% castor/68% syn).
The OS 46LA owner's manual recommends 20% oil but also says do not go lower than 18%. And the manual says full syn can be used but is less tolerant of lean operation.
I would add the castor. And be sure no not set the needle too lean on the ground.
The following is on a quart basis (multiply by 4 for gallon basis). To add castor to the mean and green fuel:
For 20% total oil, the mix would be 31.2oz of fuel / 0.8 oz of castor (resulting in 12% castor in the fuel blend)
For 22% total oil, the mix would be 30.4oz of fuel / 1.6 oz of castor (resulting in 23% castor in the fuel blend)
I would use the 22% oil blend. I have run LA's at 23% oil in the past (Brodak fuels) with no issues. I currently run my LA's at 20% total oil (32% castor/68% syn).