I've used Mobil 1 in 3 vehicles after 1000 mi.of break-in with a petroleum based oil.No oil causes leaks,All 3 vehicles had improved gas mileage and revved up to 300RPM more before upshifting.I'm a believer.
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Re:Synthetic Oil
Date: 2007/11/01 08:21
By: VladimirFJ
Status: User
Karma: 0
F.J.C.O. n00b
Posts: 2
Please let me know what type of Mobil 1 are you usin on your FJ. What abour 0w40 for engine and 75w90 for transfer box and differential axles? I am living in Ukraine where the weather pritty much like in South East Canada. Thank you so mutch in advance.
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Re:Synthetic Oil
Date: 2007/11/01 18:41
By: cruzrman
Status: User
Karma: 7
F.J.C.O. Pro
Posts: 131
I'm running 5W-30 as Toyota recommends.The temperature range for this viscosity is something like -30 to +140 degrees centigrade.You'll find that info in your owner's manual.As far as the diffs., I would also run whatever Toyota recommends.To my knowledge,the fact that the lubricant is synthetic does not mean a change in viscosity is called for.I hope that helps.
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Re:Synthetic Oil
Date: 2007/11/03 07:13
By: VladimirFJ
Status: User
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F.J.C.O. n00b
Posts: 2
Thank you for attention, wery logical decision. I am going to use new tipe of Mobil 1 ESP 5w30 fully sintetic. Should be good. Best Regards
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Re:Synthetic Oil
Date: 2007/11/04 03:55
By: sandyd
Status: User
Karma: 1
F.J.C.O. Rookie
Posts: 17
used synthetic every oil change no leaks and good performance out of it. 4 oil changes now I'm up to 13k miles.
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