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BlueHealey1951
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I had a similar problem, I put 20w-50 synthetic oil in the engine. It was blue. removing all doubt the oil was from the tranny.
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Gear Oil Leak
- Thread starter tomnanney
- Start date
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Donald1107
Senior Member
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My leak is definitely from the gearbox. I top it up every 100 miles or month out of service. I have a long, metal drip pan and keep track of how much has leaked. Fortunately a TR3 has a gearbox dip stick, so I can keep track of gearbox oil level. I would like to slow down the leak if stop-leak additives work.
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I found that when the oil level in my Healey transmission drops to 1/8” above the low level mark, the leakage stops.