T5 15w40 or 15w40 amsoil with main rear seal leak

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Sep 16, 2013
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Montreal,Quebec,Canada
I have twin 5.7gxi Volvo in my boat.
approx 800hours
both leak 2-3drops per ride from main rear seal.
Many people said do not go with full syntetic oïl with your leak. Keep 100% mineral oïl.
So I used blend T5 instead.
no increasing drop, and seems stable.
is there a big difference between amsoil 1540 and T5 1540 ?
I want to run my engines with amsoil oïl but not sure after comments received and read.

what you will do ?
thanks
 
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2-3 drops per side? I would change to synthetic without worry.

At 800 hours this is less than 80000 km in a car; I have changed more than one vehicle at mileage higher than this to Amsoil and at the highest distance (170000 km) there was some minor seepage around the seal, which went away after 5000 km. But as always, your experience may be different so keep an eye on the seals.
 
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