Hi.
Many thanks for the very informative reply, the Patrol has only done 186,000km so looking forward to a long relationship with her.
I have been searching for a good filter kit to do my own simple maintenance, a brand that has come up is Osk.
Do you by chance have an opinion?
I feel that Ryco are probably what I should be using but Osk are a cheaper version and doing 5,000km oil changes, maybe they are ok to use.
Cheers. Bob