General oil catch can or air oil separater for gas engine

[84-4runner]

oil catch can or air oil separater for gas engine. Doesn't give any more hp but keeps you from losing what you have.
have them on my tacoma and jeep rubicon. they sit between your pvc valve and where it dumps back into the intake.
It is an oily mist that degrades your gasoline rating.
On a turbo engine which has higher crankcase pressures it is even more of a problem.
I have sure there are some kits around for the BMW sports cars since the go fast crowd doesn't want to lose any
HP. So has anyone seen a kit. It should just swap on in.

 

[84-4runner]

found one that may fit

BMS Oil Catch Can for G Chassis Gen 2 B58 BMW M240 M340 M440​

but contacted them to see it will.
an easier install compared to the tacoma and the jeep rubicon

 

[TheDocAUS]

Here is the information on the diesel model separator from Hengst here.

Is there a petrol version from Hengst?

View: https://youtu.be/eBjkglPYnm0

This suggests diesel only, but others models do exist for Petrol motors (like Mercedes). Or you go generic like Provent.

 

[84-4runner]

thought the diesel engine had one, but need one for the gas engine. found a company who makes them
for the sports cars so we are exchanging pictures to figure out the fit

 

[Jiman01]

I think I remember reading that the B58 in the Grenadier has some variation of a oil catch can…its been a while so I could definitely not be remembering it right.

 

[TheDocAUS]

I think I remember reading that the B58 in the Grenadier has some variation of a oil catch can…its been a while so I could definitely not be remembering it right.

A quick internet shows there are third party options, most I saw were from motorsport stores. But does an INEOS engine bay have the room in the right places?

 

[Jiman01]

A quick internet shows there are third party options, most I saw were from motorsport stores. But does an INEOS engine bay have the room in the right places?

What I thought I read was that the B58 version in the Grenadier already had something that acted to collect oil mist vapors, similar to a an oil catch can, and reintroduce it back into the engine.

 

[TheDocAUS]

What I thought I read was that the B58 version in the Grenadier already had something that acted to collect oil mist vapors, similar to a an oil catch can, and reintroduce it back into the engine.

I do not know about the Petrol models (in any country), but the AU diesel models do have the Hengst.

 

[Disco Dave]

What I thought I read was that the B58 version in the Grenadier already had something that acted to collect oil mist vapors, similar to a an oil catch can, and reintroduce it back into the engine.

I believe the “catch can” in the B58TU, is incorporated into the valve cover.
Also, changing your oil more often will reduce the average amount of carbon in the oil, and consequently reduce valve carbon deposits.

 

[Tazzieman]

Cado weighs in
Catch cans yay or nay

 

[landmannnn]

Oil catch cans are widely used in Motorsport. The main reason is avoid water vapour entering the combustion chamber and reducing the fuel octane rating. These engines are of course run a full throttle, tuned specifically for the available fuel and often running high boost.
These catch cans are drained after every session and need to be positioned to get cool air to condense the water vapour.

For the average use case a catch can isn't required unless you are running a high performance motor at high throttle most of the time.Technically illegal in many countries too.

Moving on to diesels, a catch can might be considered to keep the intake clean and prevent sooting. However, the EGR system unless deleted introduces far more soot than an oil mist from the crankcase.

 

[Tinerfeño]

Moving on to diesels, a catch can might be considered to keep the intake clean and prevent sooting. However, the EGR system unless deleted introduces far more soot than an oil mist from the crankcase.

Exhaust gas coolers have prevented this. They have been used for more than 20 years. It is not the engine oil mist nor the carbon deposits from exhaust that used to block intake manifolds, but high temparature exhaust gas that burned the oil mist to manifold.