X-Fan Thermostatic Size for NAS D90
Anyone here used the X-Fan thermostatic switch on their lower rad hose for a 3.9L? Not sure what size to get without draining the system and measuring... And I'd rather not do that till I have the part in hand.
I would guess-timate the 38mm size but I'd appreciate if anyone could throw down with their real world experience. I've emailed them and searched online/zee forums to no avail.