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Haha yeah I guess if it's good for those high revving turbos should be good for the 1fz fe. It has 15-40 magnatec in it atm, but I don't know how long the old owner did intervals so I thought mobil 1 would keep the wear down while cleaning the gunk of there is any.Don't know for sure but I can tell you it is a 501,503,and 505 Volkswagen approved oil for their notoriously sludge prone 1.8T engines. I've got 10k miles on the Mobil-1 0w40 in my modified 1.8 Turbo Passat right now with no sign of trouble. If it's good for these engines it should be good for our mild loafer 4.5 truck motors.
Yeah man in Australia you can only choose from 5w-50,0w-40,5w-30 on the shelves oh and 5w-30 esp.A lot of us here use the M1 20-50. Very rarely get down to freezing, but it gets mighty hot on the summer. Works well with no problems for several hundred thousand miles between us. John
That sounds pretty convincing for Mobil 1. We do however get 5w-50 also in Australia I think because of the heat here can get up too 43c for 2 weeks straight. HahaI have been running M1 0-40 for several years in my supercharged 1FZ. It is not cheap but I feel it is worth it.
It also happens to be the factory fill for my SRT8 Challenger so it reduces the variety of oil I have to stock.....