Question

[Greenfly1]

So no idea what an oil catch can is for can someone educate me. Obviously it catches oil but from where what causes it you know everything else beside the dumbass answer uhhhh it catches oil.

 

[stoopid]

It would have taken you 1/3 the time to search google as it did to formulate that post. Multiple answers within the first few results.

Google Search

 

[Floridaman]

How much oil can an oil catch can catch if an oil catch can catch oil?

 

[DonD]

Frankly, if commercial oil catch cans are $35-60 and were really that beneficial, Kia and other companies would use them, they don't.

Do BMW, Mercedes and Ferrari use them? If not, we don't need them. Don

 

[Stock_stinger]

don, companies dont put them on because your average user wont be checking them to make sure they dont overfill.

also, by allowing the valves to get gummed up after 70-110k miles (where performance suffers enough to see it) youll bring it to the dealer for them to walnut blast it ($$ for them)

several newer gdi cars have dual injection. that is port and direct. port cleans the valves, direct keeps the efficiency. those setups do not have issues like a normal GDI like the stinger

a catch can is recommended because of boost. the extra pressure from the turbo engine instead of a naturally aspirated one leaks past the piston rings and goes into the crankcase. this creates extra positive crankcase pressure that must be removed. usually that pressure is from pistons moving up and down and normal pressure passing from the combustion chamber to the crankcase.

the PCV or positive crankcase ventilation takes this pressure (thats made of oil vapor, fuel vapors and soot) and throws it into your throttle body region to then be reburned (cleaner for the air emissions)

so the jist? you make boost, the pressure leaks into the crankcase and picks up oil, gas and other vapors. this vapor would then go into your engine and coat the back of the intake valves causing buildup of carbon. adding a catch can give these vapors a place to condense and store until you empty it. instead of the engine eating it

 

[D.J.]

companies dont put them on because your average user wont be checking them to make sure they dont overfill.

The could use the zero maintenance style, can never overfill.

BMS Stinger/Genesis Zero Maintenance Oil Catch Can

The BMS Stinger Zero Maintenance OCC keeps oil where it belongs preventing it from being sucked through the PCV system and coating your intake manifold, cylinder heat, and valves. Degrading your vehicle's performance over time. Low Price for piece of mind.

burgertuning.com

 

[DonD]

don, companies dont put them on because your average user wont be checking them to make sure they dont overfill.

also, by allowing the valves to get gummed up after 70-110k miles (where performance suffers enough to see it) youll bring it to the dealer for them to walnut blast it ($$ for them)

several newer gdi cars have dual injection. that is port and direct. port cleans the valves, direct keeps the efficiency. those setups do not have issues like a normal GDI like the stinger

a catch can is recommended because of boost. the extra pressure from the turbo engine instead of a naturally aspirated one leaks past the piston rings and goes into the crankcase. this creates extra positive crankcase pressure that must be removed. usually that pressure is from pistons moving up and down and normal pressure passing from the combustion chamber to the crankcase.

the PCV or positive crankcase ventilation takes this pressure (thats made of oil vapor, fuel vapors and soot) and throws it into your throttle body region to then be reburned (cleaner for the air emissions)

so the jist? you make boost, the pressure leaks into the crankcase and picks up oil, gas and other vapors. this vapor would then go into your engine and coat the back of the intake valves causing buildup of carbon. adding a catch can give these vapors a place to condense and store until you empty it. instead of the engine eating it

I think most of what you say makes sense though using a good fuel cleaner regularly would, I think help with keeping the valves clean. That along with more frequent oil changes should also help. Don

 

[Stock_stinger]

The could use the zero maintenance style, can never overfill.

BMS Stinger/Genesis Zero Maintenance Oil Catch Can

The BMS Stinger Zero Maintenance OCC keeps oil where it belongs preventing it from being sucked through the PCV system and coating your intake manifold, cylinder heat, and valves. Degrading your vehicle's performance over time. Low Price for piece of mind.

burgertuning.com

that is correct but not the style were referring to so i didnt include it. air oil separators for instance (what that is) are used on several OEM applications and is a great option

 

[Stock_stinger]

I think most of what you say makes sense though using a good fuel cleaner regularly would, I think help with keeping the valves clean. That along with more frequent oil changes should also help. Don

fuel cleaner wont do anything in our engines. the intake vales (not the face thats in the combustion chamber) but the rear stem that sees the oil mist is pre-fuel. so it wont get washed with the cleaner. oil changes is important for sure. extended changes increases the acidity and breaks down the detergent package that leads to excess vapors.

the build up on the valves leads to the valve not being able to close fully and seal leading to compression losses. among that, air flow efficiency drops alot.

example pic

 

[Daniel @ K8 Stinger Store]

Oil Catch Cans seem to come increasingly more beneficial with tuned and modified vehicles. The Stinger engines are known to suffer from blow-by and therefore a Catch Can will be there to intervene.
We have a variety of options available at our store (click HERE) feel free to reach out in a message if you need assistance with choosing one for your vehicle.

 

[Devin]

The only reason anyone should be concerned about blow by is fouling of the engine oil. That can actually cause damage if you don't change your oil often enough.

 

[DonD]

The only reason anyone should be concerned about blow by is fouling of the engine oil. That can actually cause damage if you don't change your oil often enough.

I will change the oil at 4000 mi intervals or 7 mo whichever comes first.

You have good taste in cars, mine is identical to yours. I love it. Don

 

[oddball]

The only reason anyone should be concerned about blow by is fouling of the engine oil. That can actually cause damage if you don't change your oil often enough.

You clearly have not inspected a direct injection engine after a few years or a few tens of thousands of miles. The buildup on the intake valves is truly something to behold.

Strictly necessary? No. Good idea? Yeah.
e.g. why is Don doing oil changes at 4,000 miles/7 mo? That's not Kia's recommended interval. Doesn't Kia know best?

 

[Devin]

You clearly have not inspected a direct injection engine after a few years or a few tens of thousands of miles. The buildup on the intake valves is truly something to behold.

Strictly necessary? No. Good idea? Yeah.
e.g. why is Don doing oil changes at 4,000 miles/7 mo? That's not Kia's recommended interval. Doesn't Kia know best?

I've seen the pictures. That's really all they are: pictures.

 

[MerlintheMad]

e.g. why is Don doing oil changes at 4,000 miles/7 mo? That's not Kia's recommended interval. Doesn't Kia know best?

It could be, if you drive in an area that is defined as "severe" driving conditions: like here in Utah, where the roads get heavily salted during the winter: Kia then recommends oil change/service every 3K miles: I compromise and change oil every 4K miles (since eight-nine months out of the year the roads are salt-free).

 

[DonD]

It could be, if you drive in an area that is defined as "severe" driving conditions: like here in Utah, where the roads get heavily salted during the winter: Kia then recommends oil change/service every 3K miles: I compromise and change oil every 4K miles (since eight-nine months out of the year the roads are salt-free).

No, it's me trying to give the 3.3TT engine the best practical care.

We also have a 2009 Pontiac G8GT which has 115K miles on it and runs absolutely beautifully. The engine has GM's Displacement on Demand which lets it run on 4 cylinders even at interstate speeds on level roads. But, the lifters are complex. I know the local Buick GMC dealership's service manager quite well. He's an ASME certified mechanic on his own merits and thinks oil changes even with synthetic on this car should be every 6 mo.

So, since turbos like the 3.3T put a bigger load on the engine, I opt for earlier oil changes. Don

 

[oddball]

I've seen the pictures. That's really all they are: pictures.

Now that's G-D hilarious.