^^^^ This is well said...

Engineers work to keep the product cost down. There are constant tradeoffs about adding "accessory" components vs. leaving them out. Remember too, the design and manufacturing engineering teams work to an MTBF (mean time between failures) on components. Their goal is to keep the MTBF on the back side of the vehicle's warranty period. It's life.

 

Mean is the 50 pct point on a distribution. Mean life time of 78 yers means that half will die before 78 years. Mean time between failure of 5 years (if time is even the right parameter - miles maybe) would mean half fail before 5 years. I'm thinking they look for 99 pct or more beyond some mileage value.
Correction: Mean is average. Sorry. In this case the mean and median might be close. But I still think they want more like 99 pct to go longer than some mileage value.

 

I have a Mishimoto catch can on my 2025. Just under 11,000 miles. I check it every month and it catches just enough oil to have some to pour out. Not a lot but i dont think that less on the valves is a bad thing.

 

I installed a oil catch can on my 2023 Dodge Challenger R/T Scat Pack (6.4L). After 1,500 miles, I checked the can and saw about 3 drops of clean oil in it.

I removed it and then installed it on my 2021 Jeep Wrangler (3.6L) because I was having problems with fouled O2 sensors. I empty the can (which holds 6 ounces of fluid) every 2,500 miles and it is nearly full of a oily liquid that looks like chocolate milk. Since I installed the can on the Wrangler, I have not had any O2 sensor issues and the throttle body has stayed clean.

I would consider installing one on my 2024 Stinray HTC just to try it out, but that would require removing the engine cover to install it, and then again every time to check the can. Since I am not having any issues with my Stingray I don't plan to install one at this time.

When my Wrangler was under warranty, the dealer replaced O2 sensors three times, the catalicic converter once, spark plugs once, and the muffler once at no cost to me. After the final O2 sensor replacement visit near the end of the warrenty period, I installed the oil catch can and have had no futher O2 sensor issues. I have driven it more than 17,000 miles since installing the can.

I have the same engine in my 2021 Chrysler Pacifica as the Wrangler but have not had any O2 sensor issues and the throttle body stays clean. My wife and I drive our 2 door Wrangler on frequent short trips around town because it is fun to drive (with its manual transmission), has a short turning radius, and is really easy to park anywhere. We use the Pacifica for long trips and rarely use it around town.

If you need an oil catch can may depend on your individual engine and the type of driving you do. I never start up and shut of fthe Stingray until I have driven it at least 10 miles to insure the engine is fully warmed up. That was the same for the Challenger before I sold it to purchase the Corvette. However, with the Wrangler I frequently start it up and shut it off after only a few minutes, as I have to jockey it around the driveway to get the Corvette or motorcycles out of the garage, or to get to the Pacifica when we need to.

The Challenger was not direct injection, so a few drops of oil in the intake system every 1,500 miles would not be an issue.

I realize that the Corvette is direct injection, but since I have not had any issues, I will leave well enough alone for now.

I hope this information helps.

 

yes.