I have an s20 with the old gearbox. I understand it uses straight 20 weight oil. I would like to change the oil. The drain plug looks like it will move, the inspection elbow plug comes out no problem. The large flat head plug high in the box doesnt seem to be able to budge.
Do I refill slowly through inspection overflow elbow port after draining? Or must that top screw come out? I do not want to brutalize unit.
Old Syle Gearbox, Fill Through Large Flat Head or Inspection
- coal berner
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Drain it refill it threw the elbow you can also use any of the new synthetic gear oil out there 75 140w 80 145w whatever you can get it will last for another life timeincynr8 wrote:I have an s20 with the old gearbox. I understand it uses straight 20 weight oil. I would like to change the oil. The drain plug looks like it will move, the inspection elbow plug comes out no problem. The large flat head plug high in the box doesnt seem to be able to budge.
Do I refill slowly through inspection overflow elbow port after draining? Or must that top screw come out? I do not want to brutalize unit.
- freetown fred
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Yup,indeed you can,like coal berner said