I use some Grez-Off and an ultrasonic cleaner to remove the carbon build up on my engine pistons. Pistons are out of my project 2006 Mini Cooper S. R53.
Short video showing the weight savings from upgrading your R53 Mini Cooper S trailing arms to the aluminum ones off the R56.
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Tools and Parts Links (I will make a small commission):
The Ultrasonic Cleaner - [ Ссылка ]
The Grez-Off I used - [ Ссылка ]
Haynes Manual I use -
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