Will a catch can void my new car warranty? - Page 3

puppykat33 · 01-11-2021, 10:38 AM

Quote:

Originally Posted by ST1LE

HAHAHAHAHAHA....I LOL'd when I read that. Asking someone to prove something doesnt exist HAHAHAHAHA.....oh man.....

Yea i have no idea what that means. I read it several times to try and figure it out and still ... I got nothing

DaveC113 · 01-11-2021, 10:41 AM

Quote:

Originally Posted by puppykat33

The guy at elite engineering has give lots of proof why they are beneficial to the life of your engine. from reducing valve deposits to reducing oil fuel dilution. Plenty of videos showing how much theses things catch and how much build up occurs . I dont have a can myself but there is plenty of proof.

If you are asking for exact numbers on HP reduction over given number of years then there is no way to give that exact data due to different driving styles , and a myriad of other factors.

And you say they are not necessary and i was asking you for your specific proof why they are not? Seen plenty of videos of oil puddles in LT4 superchargers

But you can't point to ONE example of an LT1 with deposits of any consequence.

I do agree driving habits matter, IMO it's a good idea to operate the engine at higher rpms and/or on the highway for a while to get the temps up so deposits don't accumulate.

Dude from Elite doesn't seem to post on this anymore. IDK why?

WhiteMale · 01-11-2021, 10:41 AM

Quote:

Originally Posted by ninetres

FWIW, the recommended service schedule in my 2021 ZL1 owners manual mentions absolutely nothing about valve cleaning, at any mileage. Just checked after someone mentioned a walnut blast in here. Nope.

There isn't one it's a dealership level money grab for people that haven't got a clue.

DaveC113 · 01-11-2021, 10:41 AM

Quote:

Originally Posted by puppykat33

Yea i have no idea what that means. I read it several times to try and figure it out and still ... I got nothing

It's not possible to prove a negative. Burden of proof is with the folks saying CCs make a difference, not the other way 'round.

WhiteMale · 01-11-2021, 10:42 AM

I chose not to run one on the Camaro but did use one on my Coyote 5.0 and the amount of oil it trapped that potentially as vapor etc etc that goes back through the intake, i'd much prefer to dump that out and deal with it that way that back through the intake.

Xaxas · 01-11-2021, 11:43 AM

Well, I have a catch can and it catches a good amount of what smells like a mixture of oil/gas, our cars aren't port injected so there should be no gas in the intake air, also I may not know as much as other people here about cars but I THINK that our engine has an AIR intake, not a OIL intake; Is there any sort of measurable/tangible benefit I feel in the short term? No, but I'd at least like to believe it's helping with a situation that's less than ideal (oil in the intake).

As for the actual topic, OP, I've never had an issue with the dealership doing service and the catch can.

zupesterLT1 · 01-12-2021, 07:48 AM

Thanks for the debate everyone. I am intending to supercharge mine soon. Doing preliminary upgrades first, CAI and borla exhaust.

JSH · 01-12-2021, 11:00 AM

There's a good chance someone has already mentioned that Chevy's warranty basically allows them walkaway from it even if they suspect you're racing or close to it

Xaxas · 01-12-2021, 01:22 PM

Quote:

Originally Posted by zupesterLT1

Thanks for the debate everyone. I am intending to supercharge mine soon. Doing preliminary upgrades first, CAI and borla exhaust.

About ~2500-3000 miles on a 5000 mile NA car, this would have gone back to the throttle body and valves over time, you decide if $150 is worth the piece of mind; now, for evidence of catch cans NOT working, well, that's not on me

RWT · 01-12-2021, 02:27 PM

I'll join the hijack.

I don't have a dog in this fight but I do find it interesting. I personally wouldn't install a catch-can just because of the possible warranty issues. So for me the argument is purely academic.

Playing the devil's advocate, if oil/air separation isn't a issue why did GM patent a new two stage "Oil Separator Assembly" on December 11, 2018? They started using it sometime after patent application in 2016 (patent pending). My 2018 Colorado with the HFV6 LGZ engine had it, as does my 2020 Camaro RS with the HFV6 LGX engine. Both engines are naturally aspirated.

The article says the new two stage Oil Separator Assembly, "can alleviate pre-ignition due to oil in the combustion chamber"...It does not say anything, however, about carbon build up on valves. The actual patent refers to the presence of oil in the combustion chamber and pre-ignition relationship as hypothetical. Again, no mention of carbon build up on valves. See both the article and the patent below.

The article:
https://gmauthority.com/blog/2019/01...ator-assembly/

The Patent:
https://gmauthority.com/blog/wp-cont...2019-USPTO.pdf

No expertise implied or expressed

koolkat68 · 01-12-2021, 08:15 PM

I for one am glad I have a catch can. Here is what was in the can.

Second pic is what it looked like when I dumped it out. Was the consistency of eggs being ready to scramble. This was after about 2000 miles.

Xaxas · 01-12-2021, 08:46 PM

Quote:

Originally Posted by RWT

I'll join the hijack.

I don't have a dog in this fight but I do find it interesting. I personally wouldn't install a catch-can just because of the possible warranty issues. So for me the argument is purely academic.

Playing the devil's advocate, if oil/air separation isn't a issue why did GM patent a new two stage "Oil Separator Assembly" on December 11, 2018? They started using it sometime after patent application in 2016 (patent pending). My 2018 Colorado with the HFV6 LGZ engine had it, as does my 2020 Camaro RS with the HFV6 LGX engine. Both engines are naturally aspirated.

The article says the new two stage Oil Separator Assembly, "can alleviate pre-ignition due to oil in the combustion chamber"...It does not say anything, however, about carbon build up on valves. The actual patent refers to the presence of oil in the combustion chamber and pre-ignition relationship as hypothetical. Again, no mention of carbon build up on valves. See both the article and the patent below.

The article:
https://gmauthority.com/blog/2019/01...ator-assembly/

The Patent:
https://gmauthority.com/blog/wp-cont...2019-USPTO.pdf

No expertise implied or expressed

Thanks for sharing this, I will def give it a read, but it's clear GM is trying to alleviate the blowby issue in a way that doesn't really require maintenance, could be a result of newer engines having turbos and high compression ratios, everyone heralded DI as the best thing for tuning, performance and efficiency, now you're seeing automakers going back to adding PI and combining it with DI, guess they know something we don't after years of data (and complaints)?

I also think there's a certain not liked German automaker who we have to thank for shedding light into this issue.

The_Dudebozo · 01-12-2021, 10:12 PM

@koolkat68, why does your gas/oil junk look like that in your catchcan? Mine doesn’t look like that.

2SS Capt · 01-13-2021, 12:12 AM

Quote:

Originally Posted by The_Dudebozo

@koolkat68, why does your gas/oil junk look like that in your catchcan? Mine doesn’t look like that.

He lives in Michigan, a lot more cold starts and moisture...

Mine is SoCal looks like this:

01-11-2021, 11:43 AM	#34
Xaxas Drives: 2019 2SS 1LE Join Date: Mar 2020 Location: Florida Posts: 282	Well, I have a catch can and it catches a good amount of what smells like a mixture of oil/gas, our cars aren't port injected so there should be no gas in the intake air, also I may not know as much as other people here about cars but I THINK that our engine has an AIR intake, not a OIL intake; Is there any sort of measurable/tangible benefit I feel in the short term? No, but I'd at least like to believe it's helping with a situation that's less than ideal (oil in the intake). As for the actual topic, OP, I've never had an issue with the dealership doing service and the catch can. __________________ Current: 2019 2SS 1LE aka "Blanc" Previous: 2017 2LT aka "Noire" Mods: Chevrolet Performance Suspension \|\| K&N Cold Air Intake \|\| Borla ATAK Mufflers + Catback system \|\| MRR 650 ZL1 replicas with squared 285/30 Michelin Pilot Sport 4S \|\| ZZP 4 piston brake kit + braided brake lines \|\| BMR everything (Solid/Lockout cradle bushing are a MUST in Camaros)

01-12-2021, 11:00 AM	#36
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,559	There's a good chance someone has already mentioned that Chevy's warranty basically allows them walkaway from it even if they suspect you're racing or close to it __________________ '20 ZL1 1LE A10, OEM short block, LME heads/valve train, E2650. 100+ octanes, no eth, no meth, no N2O. 2/23 - 1031/1004 wheel. 4/23 - 1.41/9.61/145 at DA 7000 ft. (only made five passes). 2/24 - LME 390, E2650, FBO, 100 oct.; 1116hp/ 1063tq; 109 oct. dyno next.

01-12-2021, 02:27 PM	#38
RWT Drives: 2020 Camaro RS Join Date: Oct 2019 Location: S.E. Georgia Posts: 125	I'll join the hijack. I don't have a dog in this fight but I do find it interesting. I personally wouldn't install a catch-can just because of the possible warranty issues. So for me the argument is purely academic. Playing the devil's advocate, if oil/air separation isn't a issue why did GM patent a new two stage "Oil Separator Assembly" on December 11, 2018? They started using it sometime after patent application in 2016 (patent pending). My 2018 Colorado with the HFV6 LGZ engine had it, as does my 2020 Camaro RS with the HFV6 LGX engine. Both engines are naturally aspirated. The article says the new two stage Oil Separator Assembly, "can alleviate pre-ignition due to oil in the combustion chamber"...It does not say anything, however, about carbon build up on valves. The actual patent refers to the presence of oil in the combustion chamber and pre-ignition relationship as hypothetical. Again, no mention of carbon build up on valves. See both the article and the patent below. The article: https://gmauthority.com/blog/2019/01...ator-assembly/ The Patent: https://gmauthority.com/blog/wp-cont...2019-USPTO.pdf No expertise implied or expressed __________________ RWT 2020 Camaro RS, V6, 6MT, Satin Steel 2020 Silverado, 5.3L CC, RST, Z71, Shadow Gray 2019 Equinox LS, 1.5L Turbo, Nightfall Gray Metallic

01-12-2021, 08:15 PM	#39
koolkat68 Drives: 2022 Vivid Orange Metallic LT1 Join Date: Mar 2020 Location: MI Lansing Area Posts: 72	I for one am glad I have a catch can. Here is what was in the can. Second pic is what it looked like when I dumped it out. Was the consistency of eggs being ready to scramble. This was after about 2000 miles. Attached Images

01-12-2021, 10:12 PM	#41
The_Dudebozo Drives: 2016 2SS Join Date: Mar 2019 Location: The 805 (central coast cali) Posts: 111 View My Garage	@koolkat68, why does your gas/oil junk look like that in your catchcan? Mine doesn’t look like that. __________________ 2016 Camaro 2SS A8 MRC NPP Sunroof. Addons: Stainless Works Redline axle back exhaust, Chevrolet cold air intake, C7 sideskirts/front splitter, Diode dynamics side markers

01-11-2021, 10:42 AM	#33
WhiteMale Drives: 23 ZL1 A10 Rapid Blue Join Date: Aug 2020 Location: MO Posts: 1,992	I chose not to run one on the Camaro but did use one on my Coyote 5.0 and the amount of oil it trapped that potentially as vapor etc etc that goes back through the intake, i'd much prefer to dump that out and deal with it that way that back through the intake.

01-12-2021, 07:48 AM	#35
zupesterLT1 2018 Convertible ZL1 Drives: 2018 ZL1 Convertible Join Date: Nov 2020 Location: St. Louis Posts: 27 View My Garage	Thanks for the debate everyone. I am intending to supercharge mine soon. Doing preliminary upgrades first, CAI and borla exhaust.

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