Installed ADD W1 Oil Catch Can

Cowpie · September 4, 2016

FYI, GM is voiding engine failure warranties due to catch cans.

http://www.camaro5.com/forums/showthread.php?t=451361

It is a gray area. Technically it is a modification to the emissions system, and they are within the bounds to void a warranty if it causes a problem. The Magnussen Moss Warranty Act really doesn't apply. Not quite sure how a catch can could create a problem that required a engine repair anyway, but I suppose a bad installation could do it.

But the solution that many overlook, is installing their catch can so that it can be quickly and easily removed before taking the vehicle into a dealer. I run catch cans on all my vehicles, and I can have them back to stock in a couple of minutes using only a screwdriver if I need to. I really don't need to, as the dealerships I deal with are solid midwestern small town kind of folks that don't play these kinds of games with their customers. The techs are actually receptive to the catch can idea. They see the PCV oil problem daily in various engines and know that a catch can is a viable solution.

Edited September 4, 2016 by Cowpie

esox07 · December 13, 2017

I know this thread is over a year old, but I am considering purchasing an ADD W1 ver 1 catch can for my truck. But, are they only useful on the 2014+ trucks or are they beneficial on the NNBS (2007-2013) trucks?

BigBlueLB756 · December 15, 2017

Both truck series need them, especially the new direct-injected trucks.

esox07 · December 15, 2017

OK, that is what I thought, but I only saw members with later model trucks participating in the thread.

Austin66 · December 20, 2017

Theres an ADD exact copy for $40 on ebay. Just FYI.

esox07 · December 20, 2017

I already purchased one from another Ebay vendor for $63. The real thing. Not a copy. I don't know enough about catch cans to venture into the "just as good" market. I got the ADD W1 due to online recommendations and reviews along with the reasonable price.

Thanks for the tip however. Maybe someone else will pounce on that.

Austin66 · December 29, 2017

They're the same. They're both made in China. Now the Chinese are copying other Chinese lol. Gotta love it.

esox07 · December 29, 2017

They're the same. They're both made in China. Now the Chinese are copying other Chinese lol. Gotta love it.

Do I use the large or small ports on the catch can for my silverado

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Austin66 · December 29, 2017

I went with large. I stepped mine up with a barb adaptor from the 3/8 off the intake to 9/16 hose. A race shop owner I know says the bigger the better with catch can/evacuation type setups. I was going to change the fittings on the can but the barb on the can isn't quite 9/16 nor do the threads go with anything lol. Reinforced 9/16 hose from your local hose shop fits quite snug though.

esox07 · December 29, 2017

But, is the normal size the smaller ports along with 3/8" hose for our trucks?

Austin66 · December 31, 2017

I believe so, yes. Doesn't hurt to take the fitting in to carquest or napa and test it with some trans line they have.

gm-jay · May 12, 2018

I am considering purchasing an ADD W1 Oil catch can for my truck and found they have the DRIECT BOLT ON KIT with the new V3 Oil Catch can for my truck. Any feedback? The kit come with the quick snap fitting for the PCV and CCV side hose with the Oil catch can bracket.

gm-jay · June 2, 2018

Finally i got the Oil Catch can from ADD W1, V3 Oil Catch can. it's has the Internal Baffle TRIPLE Twister chamber filter system to trap more Oil. Some catch cans are just an empty container with a few ports, Anyway here are some photos. I'll try to post some installed photos when i have chance.

Austin66 · June 3, 2018

Post pics of the internal baffling when you get a chance

DMT6 · June 3, 2018

6 hours ago, gm-jay said:

Finally i got the Oil Catch can from ADD W1, V3 Oil Catch can. it's has the Internal Baffle TRIPLE Twister chamber filter system to trap more Oil. Some catch cans are just an empty container with a few ports, Anyway here are some photos. I'll try to post some installed photos when i have chance.

Did you buy new quick connect fittings or cut the ones off the factory line? I'm trying to find out what size and where to buy those fittings. I want to be able to just hook the stock line back up quickly in case i go in for warranty work.