I'm about 98 percent certain that my ageing Mazda6 petrol version has a cam chain rather than a belt.
am I right?
Clk Sec
In case anyone else is interested , my local dealer has just told me that my particular model has a cam chain.
Thats good then regular oil changes it should be ok they can stretch and rattle usually when tensioner oil gallery becomes blocked and does not perform correctly.
Thanks, bigtee.
I have the oil changed about every 3000 miles.