Originally Posted by MrPogle
My mate changes his oil in almost total darkness because he believes that even very brief exposure to UV light damages synthetic oil. This is why it is manufactured in UV-free facilities and packed in containers which block UV light. He is a forensic chemist so maybe he is right or maybe he is mental.
I might start my own tyre-religion instead.....
BMW only recommend changing your tyres at 2mm to keep costs down for fleet operators. 2mm is nowhere near enough tread for high-performance, enthusiastic motoring so I change my tyres at 5mm.
Interesting thing about UV.......
Can I buy your old tyres at 5mm please?