Oil Catch Cans

[smillie]

Hi just wondering if anyone in Australia/New Zealand has installed oil catch can(s) on their stingers?
There's a lot about them from our USA/Canada posters but couldn't find anything from down here (apologies if someone already has posted). I've attached an example of what is being installed in the states. If anyone down here has already installed or has a product in mind I'd appreciate a heads up - thanks

 

[turboAWD]

Check out the Burger 0-maintenance OCC - it drains back into the oil pan itself..

 

[smillie]

Check out the Burger 0-maintenance OCC - it drains back into the oil pan itself..

Will do, thanks for the tip.

 

[Manaz]

Catch cans are popular on other brands here - Subarus for example, particularly on track cars.

Direct injection engines are even more susceptible to issues caused by oil in the intake tracts, a catch-can is the first thing I will be adding to my car when it arrives.

Mishimoto have a catch-can solution in development at present, but the zero maintenance unit from BMS looks good too!

 

[Stinger GT SS]

Excuse my lack of understanding with the oil catch can principal, (old engine guy & this is my first turbo GDi) although I comprehend the reasoning behind people fitting them, what I’m struggling to understand is why don’t the manufacturers (ie:Kia) fit catch cans in the first place & does fitting them void warranty.
Kia must not think it an issue if they are prepared to give 7 years unlimited kilometre warranty.

 

[Manaz]

I suspect that the TGDI engines are new enough that they don't yet have data on them to qualify or quantify the requirement.

Other GDI engine manufacturers are starting to have issues - BMW for instance. I think it is going to become a more serious problem as time goes by...

 

[Stinger GT SS]

Just watched this review
The truth about oil catch cans: Should you fit one to your car? | Auto Expert John Cadogan

 

[Manaz]

A catch-can can only invalidate a warranty claim if the car manufacturer can prove that the catch-can caused the issue at hand.

A good unit is extremely unlikely to do so.

 

[smillie]

Excuse my lack of understanding with the oil catch can principal, (old engine guy & this is my first turbo GDi) although I comprehend the reasoning behind people fitting them, what I’m struggling to understand is why don’t the manufacturers (ie:Kia) fit catch cans in the first place & does fitting them void warranty.
Kia must not think it an issue if they are prepared to give 7 years unlimited kilometre warranty.

Same as yourself, not an expert, but looks like a catch can removes a likely maintenance issue at some point or another in the engine life. I'm trying to gather information on the pros and cons before I go ahead and the only thing giving me pause at the moment is warranty issues.

 

[turboAWD]

Just watched this review
The truth about oil catch cans: Should you fit one to your car? | Auto Expert John Cadogan

Sorry, took 1 minute to read the reviews, and they confirmed that it would be a waste of time - pretty much every comment says it's a bunch of jokes and puns with no real "yes or no". Got anything better?

 

[Stinger GT SS]

Sorry, took 1 minute to read the reviews, and they confirmed that it would be a waste of time - pretty much every comment says it's a bunch of jokes and puns with no real "yes or no". Got anything better?

Sorry, nothing else I could find.

 

[app_master]

Would it be beneficial to cars that run higher than factory boost (i.e tunes)? Or even those who drive hard often AND plan to keep their car for a while (...say +7 years)?
I somewhat agree with @Stinger GT SS that I am not fully convinced of any short term benefits of these, except some perceived piece of mind, for the Stinger.

PS ... here are my personal experiences with them:

I ran a catchcan (bms N54 type) on my BMW 125i M for 18 months, it never collected anything other than an oily residue. So either I had it on wrong, can was poor design for my car, or my engine was running super clean, or or I just did not drive hard enough often. I removed the can before I sold it.

The can (a Provent 200) on my Isuzu Dmax 3.0lt turbo diesel, collects quite a bit (approx 20-25ml/1000km) ... been on for over 100k so far, but this engine runs an ecu tune, aftermarket exhaust, egr bypass and exhaust heater exchange unit is blocked-off. Mind you my oil changes at each 10k is some of the cleanest used oil ever! So happy to keep it on... the only can maintenance is a new filter every 55k and draining the can (from fitted hose tap) approx every 3000km or so. I plan to keep this car till it dies, so the long term benefit of a cc might be there for me.

 

[Cashie]

Would it be beneficial to cars that run higher than factory boost (i.e tunes)? Or even those who drive hard often AND plan to keep their car for a while (...say +7 years)?
I somewhat agree with @Stinger GT SS that I am not fully convinced of any short term benefits of these, except some perceived piece of mind, for the Stinger.

PS ... here are my personal experiences with them:

I ran a catchcan (bms N54 type) on my BMW 125i M for 18 months, it never collected anything other than an oily residue. So either I had it on wrong, can was poor design for my car, or my engine was running super clean, or or I just did not drive hard enough often. I removed the can before I sold it.

The can (a Provent 200) on my Isuzu Dmax 3.0lt turbo diesel, collects quite a bit (approx 20-25ml/1000km) ... been on for over 100k so far, but this engine runs an ecu tune, aftermarket exhaust, egr bypass and exhaust heater exchange unit is blocked-off. Mind you my oil changes at each 10k is some of the cleanest used oil ever! So happy to keep it on... the only can maintenance is a new filter every 55k and draining the can (from fitted hose tap) approx every 3000km or so. I plan to keep this car till it dies, so the long term benefit of a cc might be there for me.

I had a provent on my 2017 Nissan Navara, it collected a suprising amount of oil, I was emptying it every 8000kms or so.
Turbo diesels definately benifit from them.

 

[Manaz]

 

[smillie]

Great information Manaz, pretty much confirmed what I was thinking. Still worried about warranty issues though, anyone asked their dealers if fitting catch cans may affect warranty? Even though it looks like it prevents issues.

 

[Cashie]

Great information Manaz, pretty much confirmed what I was thinking. Still worried about warranty issues though, anyone asked their dealers if fitting catch cans may affect warranty? Even though it looks like it prevents issues.

You are altering your engine and your emission controls, there is definitely a risk that Kia could void an engine issue warranty claim. Having said that, I’ve run catch cans on several of my cars without issues.

 

[Flaniganskywalker]

KIA tech said it was not needed. I was also goingtoget one.Tech said every month or so go on the HWY with spirited riving and it will get rid of most of it with just driving--then an oil change will get the rest of the gunk--in addition to the oil filter.The tech said just follow normal oil changes are critical--if you track the stinger--change oil at a "severe" driving interval.They have developed this engine for over a decade and I got my first oil change and he said the oil was clean. I was told--use PREMIUM gas and change the oil every 3 to 5k depending on driving.premium gas burns hotter and cleaner--thereby handling carbon--and normal to severe oil change schedule is also critical.If you have to use 87 or 89--was told that the next 3 fill ups have tobe premium.Tech also said not to "putt" around in traffic all the time--if so get it up to a HWY speed.I even got an email from KIA corporate--I just bought my Stinger--that because of covid to get out and drive thecar for 15 minutes (weekly). Basically just maintain the car and get it up to HWy speeds every 2 weeks or so.A freind with an Audi was told this same thing a decade ago. Oil changes--good gas and HWY driving monthly.

 

[Flaniganskywalker]

KIA tech said it was not needed. I was also goingtoget one.Tech said every month or so go on the HWY with spirited riving and it will get rid of most of it with just driving--then an oil change will get the rest of the gunk--in addition to the oil filter.The tech said just follow normal oil changes are critical--if you track the stinger--change oil at a "severe" driving interval.They have developed this engine for over a decade and I got my first oil change and he said the oil was clean. I was told--use PREMIUM gas and change the oil every 3 to 5k depending on driving.premium gas burns hotter and cleaner--thereby handling carbon--and normal to severe oil change schedule is also critical.If you have to use 87 or 89--was told that the next 3 fill ups have tobe premium.Tech also said not to "putt" around in traffic all the time--if so get it up to a HWY speed.I even got an email from KIA corporate--I just bought my Stinger--that because of covid to get out and drive thecar for 15 minutes (weekly). Basically just maintain the car and get it up to HWy speeds every 2 weeks or so.A freind with an Audi was told this same thing a decade ago. Oil changes--good gas and HWY driving monthly.

Oil changes at KIA are only 50 dollars.I will just get them done at 3k miles to not worry.Plus you can always ask them to let you know what the oil looks like in the comments and they will tell you like they did me. New oil filters are better then ever.If your oil is dirty--lower the oil change interval.

 

[Luc343]

KIA tech said it was not needed. I was also goingtoget one.Tech said every month or so go on the HWY with spirited riving and it will get rid of most of it with just driving--then an oil change will get the rest of the gunk--in addition to the oil filter.The tech said just follow normal oil changes are critical--if you track the stinger--change oil at a "severe" driving interval.They have developed this engine for over a decade and I got my first oil change and he said the oil was clean. I was told--use PREMIUM gas and change the oil every 3 to 5k depending on driving.premium gas burns hotter and cleaner--thereby handling carbon--and normal to severe oil change schedule is also critical.If you have to use 87 or 89--was told that the next 3 fill ups have tobe premium.Tech also said not to "putt" around in traffic all the time--if so get it up to a HWY speed.I even got an email from KIA corporate--I just bought my Stinger--that because of covid to get out and drive thecar for 15 minutes (weekly). Basically just maintain the car and get it up to HWy speeds every 2 weeks or so.A freind with an Audi was told this same thing a decade ago. Oil changes--good gas and HWY driving monthly.

I think because the engine is direct injection the inlet valves do not get cleaned during any type of driving. Thats where people believe that a catch can will reduce the carbon build up on the back of the inlet values. Yes, highway driving will clean every thing in the cylinder but it will not clean the back of the inlet valves. The petrol bypasses the inlet valves and is injected directly into the cylinder.

Also, in modern engines the tolerances are bigger to reduce friction. The less frictional loss the better the power output and efficiency. This applies to the piston rings, which means more blow-by to pressurise the sump, which adds to the carbon build up problem on the inlet valves.

I'm not a fan of catch cans because they only delay the build up and I think the delay is small. Also, most catch cans require maintenance. Plus the marketing pictures of dirty inlet valves are just that, marketing pictures.

 

[Flaniganskywalker]

I think because the engine is direct injection the inlet valves do not get cleaned during any type of driving. Thats where people believe that a catch can will reduce the carbon build up on the back of the inlet values. Yes, highway driving will clean every thing in the cylinder but it will not clean the back of the inlet valves. The petrol bypasses the inlet valves and is injected directly into the cylinder.

Also, in modern engines the tolerances are bigger to reduce friction. The less frictional loss the better the power output and efficiency. This applies to the piston rings, which means more blow-by to pressurise the sump, which adds to the carbon build up problem on the inlet valves.

I'm not a fan of catch cans because they only delay the build up and I think the delay is small. Also, most catch cans require maintenance. Plus the marketing pictures of dirty inlet valves are just that, marketing pictures.

That is why the tech said to use premium gas.They also do tests on you tube and it burns hotter--and even though some call it a scam--premium in almost all chemical tests has more cleaning agents to avoid this.I have used premium in all the cars I have ever owned and have never had any major repairs.I also take my car to the dealer for all the service.