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I run my injection pumps on cheap 15w40 instead of the fancy oil, and they outlast the 'by the book' ones
Everyone in my shop swears you need the expensive low-ash oil in a Bosch pump or you'll chew up the cam plate. I've been running plain 15w40 in a half dozen pumps for two seasons now, including a 5.9 that tows every day, and the internals look better than the ones on the $12 a quart stuff. Pulled one apart at 180k miles last month, cam plate and rollers were clean, no scoring at all. The oil spec guys will tell you I'm nuts, but the wear numbers don't lie. Anybody else tried this, or am I the only one out here running cheap oil in a pump that's supposed to be picky?
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tessa_clark7411d ago
Did you ever notice how the old timers talk about oil the same way people argue about which gas station has the best coffee? My grandpa ran a tractor on whatever was on sale at the farm store for thirty years and that thing is still running on his neighbor's place. Meanwhile my uncle babied his with the top shelf stuff and blew a head gasket at 90k. That said, oil specs do matter for some things, like the newer trucks with the emissions junk on them. But an old mechanical pump is a whole different animal, it's just metal sliding on metal with oil doing its job. The spec sheet guys never want to hear that the cheap stuff works fine when the pump was built before everything got so complicated.
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