Installed ADD W1 Oil Catch Can

Spurshot · July 15, 2015

Totally agree. It's not designed for this purpose and you know what they say about excrement occurring.

Otherwise, I like your selection of the Mann product. You do not need any fancy machined aluminum part for this purpose, especially with the weight it entails stuck out on a cantilevered bent bracket like most of the installations here seem to have. That is going to vibrate (I'd NEVER install anything like that in any of the "vibrator" trucks!). It's too much mass stuck out too far, and connected to a mounting point not designed for this purpose. Those long hoses are unsupported through most of their length. Those brackets will break. Right at the bend. You watch.

Second point: Why does everyone want the can to be mounted in a "cool" location? That makes no sense to me. If it's "hot", the water, which appears to be the main component of what these capture, will simply evaporate without any ill effects. The oil has a far higher evaporation point and will remain in the can, therefore it won't have to be drained so often. Here is another advantage to the Mann product -- it's plastic. Lower thermal mass, lower heat transfer = more water evaporated back into the intake. That translates to more flexibility in mounting location too. There's no problem draining that little bit of water back into the sump either. 15 minutes at full operating temperature will evaporate it and send it through the engine like it's supposed to.

And a question for Spurshot: what did you do with the return/drain tube? Is there a convenient location for it to connect to to drain back into the sump?

One last question for others who've done this mod: Do/did you see any significant (for the lack of a better term) oil consumption in your engines before you installed the can? I'm still on the factory fill, but there hasn't been one bit of consumption visible on the dipstick (always measured hot for consistency) in 4K miles. If you're actually pouring "cans full" of liquid away, and it's actually oil in there, shouldn't you be seeing measurable consumption?

I've been delinquent. I haven't worked on the truck in a while. Last mod was the intake manifold and throttle body a month ago.

But, to your question, I haven't found a convenient location. My considerations are either the dipstick tube or the actual lower oil pan:

The dipstick tube could be bought cheaply and modified off the truck. My thought was to 'fish-mouth' the side of the tube near the base and add a hose nipple.
The oil pan would have to pulled and a threaded bung welded or brazed in for a fitting. Again, I'd just buy a new pan and modify it off the truck and replace.

silveradotech · July 15, 2015

Looks like I'll be needing to emptying the catch can more often,, it was completely full today, but my question is what I the sludge like stuff at the bottom that want come out when I tip it over to drain it, brown in color and very think, need to take a rag to it to wipe it out

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Just ordered mine just from this picture! How many miles was that?

ccdies · July 15, 2015

About 2500 miles

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07Softail · July 15, 2015

OMG!!! That's a lot of oil there man! i got 1/2 oz last check.

RT

ccdies · July 15, 2015

OMG!!! That's a lot of oil there man! i got 1/2 oz last check.

RT

is this not normal,, I could just imagine how the inside would look if it was sucked up into the engine

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Silverado-Hareek · July 15, 2015

is this not normal,, I could just imagine how the inside would look if it was sucked up into the engine

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How many ounces is it? I'me getting about 6 oz of oil/water every 600-700 miles in the winter and about 2-2.5 oz of oil only every 1,500 miles in the summer. I have an RX catch can.

ccdies · July 15, 2015

This is how ever much that the catch can holds, the bottle is 17oz so Its long and slim, guess it looks like a lot from the pic

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Lawnmower2020 · July 15, 2015

Jeebus that's a lot of oil in that (1L plastic?) bottle. Holy cow. I find it a little hard to believe that this engine has a properly functioning PCV system. That much looks like it would gunk up an engine in no time at all. It would probably collect in the recesses of the intake tuning features.

ccdies · July 15, 2015

I guess that why a lot of people on here say that the truck uses a lot of oil, but instead it gets burned through the intake

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Lawnmower2020 · July 15, 2015

BTW, the service manager at my dealership was pleasantly chatty last week and I asked him about his experience with intake carbon buildup. Said he's seen a few of them in the DI engines so far with mileage over 30K. I didn't ask him whether GM was paying for the cleanup, but got the feeling that they were covering it.

I'm thinking of SeaFoam directly into the intake every oil change...

[why in blazes does this post the same text two or more times without exiting the editor after pushing the "post" button?]

Edited July 15, 2015 by Lawnmower2020

SouthernSilveradoGuy85 · July 15, 2015

BTW, the service manager at my dealership was pleasantly chatty last week and I asked him about his experience with intake carbon buildup. Said he's seen a few of them in the DI engines so far with mileage over 30K. I didn't ask him whether GM was paying for the cleanup, but got the feeling that they were covering it.

I'm thinking of SeaFoam directly into the intake every oil change...

[why in blazes does this post the same text two or more times without exiting the editor after pushing the "post" button?]

I used CRC GDI IVD intake cleaner. Got it from Autozone and it says on the can to do it every 10,000 miles.

http://crcindustries.com/auto/intake-valve-cleaner.php

Oh and just push the post button once.

Edited July 15, 2015 by SouthernSilveradoGuy85

Lawnmower2020 · July 16, 2015

Oh and just push the post button once.

I do. It just sits at the editor. Push it again, it actually posts a second copy of everything, but still sits at the editor. It never exits the editor. Beats me!

Back to your regularly scheduled programming........

SouthernSilveradoGuy85 · July 16, 2015

I do. It just sits at the editor. Push it again, it actually posts a second copy of everything, but still sits at the editor. It never exits the editor. Beats me!

Back to your regularly scheduled programming........

Ya just push the post button once and wait a couple seconds and then refresh the page.