Vehicle is 2007 Mitsubishi Outlander which has 27000 KM (1 mile = 1.6 km). Read somewhere that it is a good idea to replace factory fluids early. We are not talking about engine oil here btw.
Had a drain and fill on the following:
1. ATF - Drained about 4 litres and refilled with factory recommended J2 Diaqueen bought from dealership.
2. Transfer Case - Drained out factory sae 80? and pumped in 75w-90 SVG.
2. Rear Diff - Replaced factory sae90? with svg 75w-90.
Good News: Could not believe the gunk on the transfer case magnet. Liquid was kinda greenish gray. There were metal particles on the magnet. I wasnt there to check on rear diff fluid but it probably was slightly better. This could have been attributed to runnin in 2WD mode during summer. Another side benefit was that I now know how to do all the above fluid changes. Its easy and since I already do my own oil changes, it means that only fluids that I dont know how to change will be coolant, brake and PS fluid.
Bad News: Fuel consumption increased. Engine oil hasnt changed (still running ASM 0w20) and part of the ATF replaced was with stock ATF J2 which is the same. So, it leads me to believe that either TCase or RDiff seem to be protesting a little bit since engine is now revving slightly higher than it was before for same speed. Also, my IP shows clearly a drop in mileage. First day it was a whopping 20% drop. Later it slightly improved but I am positive that it hasnt gone back to original levels.
Here is what AMSoil product guide has to say for my vehicle
Standard Differential, Rear .....GL-5
Above -23°C......80W-90, 85W-90, 90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Standard Differential, Rear .....GL-5
-34 to -23°C......80W-90, 80W
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Standard Differential, Rear .....GL-5
Below -34°C......75W
Transfer Case,.....GL-5
90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Had a drain and fill on the following:
1. ATF - Drained about 4 litres and refilled with factory recommended J2 Diaqueen bought from dealership.
2. Transfer Case - Drained out factory sae 80? and pumped in 75w-90 SVG.
2. Rear Diff - Replaced factory sae90? with svg 75w-90.
Good News: Could not believe the gunk on the transfer case magnet. Liquid was kinda greenish gray. There were metal particles on the magnet. I wasnt there to check on rear diff fluid but it probably was slightly better. This could have been attributed to runnin in 2WD mode during summer. Another side benefit was that I now know how to do all the above fluid changes. Its easy and since I already do my own oil changes, it means that only fluids that I dont know how to change will be coolant, brake and PS fluid.
Bad News: Fuel consumption increased. Engine oil hasnt changed (still running ASM 0w20) and part of the ATF replaced was with stock ATF J2 which is the same. So, it leads me to believe that either TCase or RDiff seem to be protesting a little bit since engine is now revving slightly higher than it was before for same speed. Also, my IP shows clearly a drop in mileage. First day it was a whopping 20% drop. Later it slightly improved but I am positive that it hasnt gone back to original levels.
Here is what AMSoil product guide has to say for my vehicle
Standard Differential, Rear .....GL-5
Above -23°C......80W-90, 85W-90, 90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Standard Differential, Rear .....GL-5
-34 to -23°C......80W-90, 80W
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube
Standard Differential, Rear .....GL-5
Below -34°C......75W
Transfer Case,.....GL-5
90
SAE 80W-90 Synthetic Gear Lube
Severe Gear 75W-90
SAE 75W-90 Synthetic Gear Lube