A fellow 4Runner owner. I had a '97 SR5, V6, 5-speed, with the factory leather, moonroof, and rear diff locker for 22+ years. Finally sold it when some random guy offered me too much money to ignore. He knew what it was, and was willing to pay.
At any rate, I replaced it with a TRD ORP, which is accruing miles at about the same rate as the old '97 was towards the end of it's life with us, Give or take 1k per year.
It pretty much always had Mobil 1 in the sump. Back when it was being driven regularly, to eventually rarely. It was always clean under the valve covers. Just an FYI, the 5VZ-FE valve cover gaskets will start to seep eventually. Usually just gently snugging them back down stops any seepage. Torque spec is 4.4 ft lbs.
At any rate, I replaced it with a TRD ORP, which is accruing miles at about the same rate as the old '97 was towards the end of it's life with us, Give or take 1k per year.
It pretty much always had Mobil 1 in the sump. Back when it was being driven regularly, to eventually rarely. It was always clean under the valve covers. Just an FYI, the 5VZ-FE valve cover gaskets will start to seep eventually. Usually just gently snugging them back down stops any seepage. Torque spec is 4.4 ft lbs.