My mower is 10yrs old with a 4 Stroke Vtwin 20hp+ engine that has had dino SAE 30 oil the majority of it's life. I switched to full synth oil a couple years ago and added Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs. What oil additive would you guys recommend?
Oil additive to resolve oil burn in my mower?
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Originally Posted by 13Track38
Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs.
I would stop adding seafoam to the fuel. Seafoam is a light oil with alcohol and some naptha. Burning oil in the fuel could contribute to the piston deposits.
If i used an additive for carbon deposits, it would be a pea product like techron. Berryman b-12 is good for cleaning the carb. Make sure the sparkplug is gapped correctly and reinstall it.
If its using oil, a high mileage 10w30 , or a hedo 15w40 should help. If you are running a straight 30 it should NOT be a ND( non detergent ) sae 30.
Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs.
I would stop adding seafoam to the fuel. Seafoam is a light oil with alcohol and some naptha. Burning oil in the fuel could contribute to the piston deposits.
If i used an additive for carbon deposits, it would be a pea product like techron. Berryman b-12 is good for cleaning the carb. Make sure the sparkplug is gapped correctly and reinstall it.
If its using oil, a high mileage 10w30 , or a hedo 15w40 should help. If you are running a straight 30 it should NOT be a ND( non detergent ) sae 30.
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Try moving up the viscosity scale to 15W40 for the winter and 20W50 for the summer. I think most small engines, and even more likely the ones built 10 years ago tend toward richer fuel mixtures which are going to leave combustion chamber carbon. Oil burning only compounds the problem.
Try 10W40, or 15W40.
Originally Posted by 13Track38
My mower is 10yrs old with a 4 Stroke Vtwin 20hp+ engine that has had dino SAE 30 oil the majority of it's life. I switched to full synth oil a couple years ago and added Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs. What oil additive would you guys recommend?
I use 20w-50 on oil burners.
My mower is 10yrs old with a 4 Stroke Vtwin 20hp+ engine that has had dino SAE 30 oil the majority of it's life. I switched to full synth oil a couple years ago and added Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs. What oil additive would you guys recommend?
I use 20w-50 on oil burners.
Originally Posted by 13Track38
I switched to full synth oil a couple years ago and added Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs. What oil additive would you guys recommend?
Stop using Seafoam in the oil. That's probably what's getting consumed. That and also try a 15w-40 as others have mentioned.
I switched to full synth oil a couple years ago and added Seafoam in the oil and fuel since the pistons look caked with deposits when I removed the plugs. What oil additive would you guys recommend?
Stop using Seafoam in the oil. That's probably what's getting consumed. That and also try a 15w-40 as others have mentioned.
Go back to SAE 30. It was working for you.
A synthetic oil that tends to work well in air cooled engines is Mobil 1, 15W-50.
I would use a straight weight 40 since it's a warm weather machine
I had a mower once that ran 100% on STP treatment!!!!
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