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Isuzu Owners Maintenance and Repair
As a matter of general info, I run synthetic blend oil in my engine (Castrol Syntec Blend or Valvoline Durablend), 5W30, genuine Isuzu filter, changed every 3000-3500 miles. I can't really justify spending the extra money on full synthetic.
I change my oil myself, and the next time I do I'll also be swapping out the TOD fluid (it's only 2 quarts) and putting Valvoline Durablend auto transmission fluid in there.
My Trooper has 38,000 miles on it and I just love it.
98 Trooper, Detroit area