It's a gamble without a doubt - not something I would necessarily recommend- but a gamble I had to take as I was in college and had marginally more time than money.
At the time I happened to work in a research lab with a PHD tribologist who had been building engines for drag racing twice as long as I'd been alive. After showing him the bearings I pulled out and the condition of the crank, he was pretty convinced I would be able to get enough life out of the engine to make it worth it- he was right.
Dino 10w-30 resulted in hot oil pressures that were too low. Mobil 1 5w-30, with it's better high temp viscosity stability barely keeps the oil pressure at 3000 rpm just inside the bottom of the spec.
Rolling in new rod and crank bearings with the engine in the truck sucked...bad.
At the time I happened to work in a research lab with a PHD tribologist who had been building engines for drag racing twice as long as I'd been alive. After showing him the bearings I pulled out and the condition of the crank, he was pretty convinced I would be able to get enough life out of the engine to make it worth it- he was right.
Dino 10w-30 resulted in hot oil pressures that were too low. Mobil 1 5w-30, with it's better high temp viscosity stability barely keeps the oil pressure at 3000 rpm just inside the bottom of the spec.
Rolling in new rod and crank bearings with the engine in the truck sucked...bad.
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