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john charlton · 11-01-2019, 04:42 AM

I use cheap and cheerfull 20/50 multigrade from the supermarket as long as it is SAE rated . I change the oil when it becomes opaque on the dipstick this is normally around 1500/2000 miles . When I have dropped the pan for a general health check everything is nice and clean also the valve chest . Modern oils are vastly superior to the oils of 90 years ago . I keep my engines clean internally and would not use straight oil in an unknown engine .

John in rainy cool Suffolk County England .

11-01-2019, 04:42 AM	#24
john charlton Senior Member Join Date: May 2010 Posts: 1,304	Re: Oil for model a+ t I use cheap and cheerfull 20/50 multigrade from the supermarket as long as it is SAE rated . I change the oil when it becomes opaque on the dipstick this is normally around 1500/2000 miles . When I have dropped the pan for a general health check everything is nice and clean also the valve chest . Modern oils are vastly superior to the oils of 90 years ago . I keep my engines clean internally and would not use straight oil in an unknown engine . John in rainy cool Suffolk County England .