I'm with you on keeping an engine healthy. For me, it is extra filtration. Even though I use Rotella, I have the Amsoil bypass filter on the engine oil plus a spin on coolant filter as well as a spin on transmission fluid filter. And like you, I'm a believer in real gauges, not the computer driven instrumentation from the factory.
I'm currently rebuilding the turbo and installing a complete exhaust system... new up pipes from the exhaust manifolds and turbo back 4" system. Also installing a regulated return fuel system. I want this engine to last another 350,000 miles.
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