- January 31, 2020
- Reaction score
- City, State
- LAKE WORTH
- Year, Model & Trim Level
- 2020 Explorer ST
Was that even worth it?
The short answer is yes any oil trapped is improving combustion efficiency. The thing we see most is that the smaller catch cans with honeycomb filters and small inline filters are all very prone to allowing as much oil get through as they collect making them about 50% efficiency rate on the high side. The next step is to look in the exit line and still, you can see how much oil gets through into the intake tract and is doing a so so job at best.
That is the reason UPR has such complex internal diffuser systems and multiple patents on the technology as it is not cheap nor is it just install a simple screen and some honeycomb material. We have run many of the smaller competitor catch cans in series before our catch can and capture about the same amount of oil as the smaller pre-can that is allowing oil through it.
The problem is exactly the same with the poor performing catch cans with one serious condition all Ecoboost engines suffer from. LSPI and that is Low-Speed Pre-Ignition which is the most common thing with small turbocharged engines. That is when the engine gets a small mist of oil in the vapor form in the fuel mixture and it causes the engine to fire early and light pre-ignition that slowly wears away at the internals and rings and in some cases it even chews into the ring landings.
Because of the higher demand on the Ecoboost engine and increased cylinder pressure from LSPI will be the biggest thing you can eliminate with a properly designed and effective catch can. Normally it is inaudible to the human ear and knock sensors barely pick it up. Anyone running low or mid-grade gas will absolutely fall victim to this phenomenon. I am only mentioning this as I have seen this on most of the Ecoboost mustangs and they are much lighter with less load and they suffer from this at the bone stock level.
The most important thing is to get a sufficient sized catch can with a good internal diffuser system and not one that has the in and our ports side by side. Then look into a good synthetic that will not combust in the cylinder and create higher cylinder pressure. Mobil One is the most readily available and usually the cheapest oil that will not combust in the cylinder and for the enthusiast, you will want a Torco or Royal Purple or better. I have shared real results with many of our customers that have switched from the smaller catch cans and experienced the benefits in the first few weeks of driving.
They report back improved MPG and even better they can drive, play, and tow with hotter tunes than before.
No matter what you do get a properly designed catch can in place and your vehicle benefit.
Have a great weekend, Joe