OT slightly: oil bath air cleaner oil weight...

DENNIS MIN · Dec 10, 2011

All,

I got a unique situation I hadn't considered.

A fixed turbocharged diesel engine, held at a warm temperature, indoors, that has on outdoor oil-bath air cleaner, which oil do I put in it's air cleaner?

Normally one would put the same viscosity for sump andair cleaner, both; but perhaps there's things I had not thought of.

Minnesota for temperatures....

I welcome all polite replies,

D.

Bob Huntress · Dec 10, 2011

If you have access to 20 weight oil that you could use, it is what was intended for the system. Today we have 10-30 and 15-40, which lubricates the engine better. If you want to use the same oil in the air breather, it isn't a problem, yet, there is a slight advantage isn using the lighter 20 weight for the air breather. It's not that big a deal if you just use the same oil as you use in the engine.

Kent Petersen · Dec 10, 2011

i would run 10w in the winter and 20w in summer

greygoat · Dec 10, 2011

My books for "Wisconsin Air cooled" engines, say
to use the same oil in the oil bath air cleaner,
as in the crankcase. I use 10-30 in everything!

Anonymous-0 · Dec 10, 2011

I'd use the same weight that would be used if both were outside. To heavy and you lose filtering or "choke" engine. Any way to get air cleaner inside and just have air intake pipe outside?

NEsota · Dec 10, 2011

The cold outside air going into the engine is good because it is denser than the inside air, this assumes inside air is warmer. Using less dense warmer air, rather then colder air will partially off set the advantages of the turbo compressor.

buickanddeere · Dec 10, 2011

0W-20. Oil will be so thick otherwise it won't mist and cover all the mesh.

ejr-IA. · Dec 10, 2011

I would put a dry type air cleaner instead of the oil bath.Plenty of salvage yards have combine and tractor dry air cleaners removed.

k6zrx · Dec 10, 2011

My "56 Plymouth manual calls for 50 weight for temps above 32 degrees, and 20 weight for temps below that. The 50 weight for warmer temps is much heavier than what should be used in the crankcase which would be 30, 20W-40, or 10W30. The heavier, straight weight grades of oil are available as racing type oils.

I figure the engineers that designed the engine know a lot more than we all do, so I follow their advice.

In choosing oil for an engine that will be kept inside and warm, maybe heavier, warmer temp oil for the engine and lighter, cold temp oil in the air cleaner since it will be sucking in the cold air. I think that is what I would do.

Josh

Paul from MI · Dec 10, 2011

You don't say what the temp of the inlet air is, but I assume it to be warm air from inside the building. In that case I'd use the same oil as the crankcase. Since it's a diesel you don't want to light of oil whicch could get sucked into thge engine and cause a runaway. Going to a dry filter might be a good idea.

OT slightly: oil bath air cleaner oil weight...

DENNIS MIN

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Bob Huntress

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Kent Petersen

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greygoat

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Anonymous-0

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NEsota

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buickanddeere

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ejr-IA.

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k6zrx

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Paul from MI

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