SOHC.co.uk Forums > CB750

oil

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ace cafe racer:
Can anyone tell me if using semi synth oil in my F1 will cause clutch slip or should I try obtain 10/40 mineral oil which seems to be a rare commodity apart from obtaining on the internet.
thanks for any replies.

philward:
Here's a good thread - http://www.sohc.co.uk/index.php/topic,11429.0.html

Paul Hughes:
10/40 mineral oil , all day long, and that’s coming from a professional engine builder who’s worked in the industry over 40 years in restoration / world super bikes and Moto GP.( not me by the way lol )
He swears by Motul Mineral.

Nurse Julie:
10w40 or 15w40 (depending on the spec of oil). Mineral for running in 500 miles, then semi synthetic after that. From the Tea girl of a current professional engine builder of SOHC/4 Hondas 🤣🤣🤣🤣

philward:

--- Quote from: Nurse Julie on July 22, 2019, 09:01:12 PM ---10w40 or 15w40 (depending on the spec of oil). Mineral for running in 500 miles, then semi synthetic after that. From the Tea girl of a current professional engine builder of SOHC/4 Hondas 🤣🤣🤣🤣

--- End quote ---
And what tea does the professional tea maker recommend!

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