Quote:
Originally Posted by DaddyOutlaw
Not really , most of the synthetics you find are either 75w90 or 90w140.
Ive always used castrol oils with great luck.
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The gear oil I used was Valvoline Durablend 80W90 synthetic blend. The truck doesn't leak at all. I used Castrol full synth (5W-30 I think) motor oil the last time I changed the oil. I'm using a 5-6,000 mile oil change interval with the full synth. It seems to work fine.
With the transfer cases and transmission - what kind of interval do you use - 25,000 miles or two years? My truck is "high" mileage (quotes due to high for a Plymouth and high for a Toyota are two different things) at 170,000. I use 4WD occasionally, but out here, most trails are doable in 2WD.