Bumped into an old mate last night! - haven't seen him for a few years, and as usual got into a discussion about Oil. He reckons i'm being wasteful changing my oil every 5000 mls, as semi-synthetic is good for 12000mls. I've had the Octavia 12 months now and in that time it's done 4300mls, mostly cold, short, trips taking the hounds out. so I've booked it in for a change. Mate says that oil will last another 12months at that rate, but that would make it two years old and I think that is too long as the additives would have deteriorated .I tend to think that the age of the oil is more important than the mileage it has done - which of us is in your opinion is correct?
This is the chap that used to change his oil every time I changed mine - and put my used oil in his car!!
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