As the thread title says - pros and cons of an oil catch can for the turbo hybrid in the US.
Pros and cons of an oil catch can
- Thread starter MtBiker19
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Does not the Toyota D-4S port/direct injection system negate the need for a catch can? The CarCareNut did a teardown of a D-4S engine, and the intake ports and the backs of the valves were clean.
Does your LC burn oil? I'm 30k into ownership and oil usage doesn't seem to be one of its quirks.
So with my specific LC circumstances, adding a catch can would be 100% useless, especially on a motor with D4S injection.
So with my specific LC circumstances, adding a catch can would be 100% useless, especially on a motor with D4S injection.
You’re going to make all the soccer moms with land cruisers swoon when you regale them with tales of how much blowby you’re saving your intake from.
In general, the engines that have the excessive build-up of carbon on the backside of valves are the direct injection only fuel systems. I have a car with this system and is a pita cleaning the valves. You're much less likely to have build up with the dual injection since the injected into air flow gasoline cleans the backside of the valves. We get the best of both worlds. As for a catch can, it will improve performance if nothing else. Not sure about compatibility with the LC emission system.
Edit: removed air oil separator, apparently there were problems with the one i suggested, worked fine for me.
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For any that might not know, The primary benefit of the catch can is to remove the oil/fuel/water vapor sent back into your intake to be burned, it collects in the catch can instead. The oil vapor directed into intake (egr) drops the octane rating and can cause predetonation and subsequent ignition retard. This is a detriment with turbo engines, eapecially running high levels of boost and more blow by.
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Thanks for the clarification. I thought our engines were direct injected only- not port & direct. That certainly changes the deposit issues on the intake valves. The only issue I could potentially see would be the EGR gases (oil,water,fuel vapor) coating the surfaces of the impeller blades and the intercooler.
I guess I'm still looking for a downside and all that I can think of is the unknown of how often the can would need to be drained, if the can didn't have sufficient baffling - then larger (non-vapor) impacting the system - and lastly if the water vapor were to freeze or system clog, then what happens.
Seems like the juice isn't worth the squeeze.
I guess I'm still looking for a downside and all that I can think of is the unknown of how often the can would need to be drained, if the can didn't have sufficient baffling - then larger (non-vapor) impacting the system - and lastly if the water vapor were to freeze or system clog, then what happens.
Seems like the juice isn't worth the squeeze.
