Catch Can Debate
Thread Starter
Member
Joined: Aug 2017
Posts: 31
Likes: 6
Catch Can Debate
So I have been reading about this catch can modifications. Some videos show a lot of gunk being drained and others say they are unnecessary and nothing is drained.
I called my local dealers service department to see what the manager thought and he didn't know what a catch can was or heard of it. But he was clear that any modifications to the engine would void the warranty including a catch can and tuning.
It just seems with the building up on valves and also if oil/fuel/condensation is able to be pulled up through the PCM vacuum and make it's way back into the engine it is not a good thing. And this would of course become a problem down the line which would be out of warranty.
It makes you wonder if automobile manufacturer's possibly are making the cars to not go long term, or we just have us consumers concerned over nothing. Also of course after market companies want to skew the truth to sell their products as well.....
The catch can is one of those debates, and I can't figure out which way to go. I'm thinking just buy an extended warranty and that is the best route.
I called my local dealers service department to see what the manager thought and he didn't know what a catch can was or heard of it. But he was clear that any modifications to the engine would void the warranty including a catch can and tuning.
It just seems with the building up on valves and also if oil/fuel/condensation is able to be pulled up through the PCM vacuum and make it's way back into the engine it is not a good thing. And this would of course become a problem down the line which would be out of warranty.
It makes you wonder if automobile manufacturer's possibly are making the cars to not go long term, or we just have us consumers concerned over nothing. Also of course after market companies want to skew the truth to sell their products as well.....
The catch can is one of those debates, and I can't figure out which way to go. I'm thinking just buy an extended warranty and that is the best route.
Senior Member
Joined: Mar 2015
Posts: 600
Likes: 139
The catch can thing is just... Mind boggling.
Guys used to run those on turbo 4 bangers back in the day. These were 4 cylinder engines that either had a turbo added, or had the factory turbo upgraded and were running 50-100% more boost than factory.
In these cases it made sense that oil could be getting past the piston rings or just where it wasn't supposed to in general.
Now I see guys running catch cans on naturally aspirated engines. Why?
I wouldn't be surprised if guys started running turbo timers on their stock ecoboost or even non boosted engines next. It would be the exact same marketing plan and make just as much sense.
Guys used to run those on turbo 4 bangers back in the day. These were 4 cylinder engines that either had a turbo added, or had the factory turbo upgraded and were running 50-100% more boost than factory.
In these cases it made sense that oil could be getting past the piston rings or just where it wasn't supposed to in general.
Now I see guys running catch cans on naturally aspirated engines. Why?
I wouldn't be surprised if guys started running turbo timers on their stock ecoboost or even non boosted engines next. It would be the exact same marketing plan and make just as much sense.
