I tried water for my old car before. Yes it works

Just I don't dare try on my Mazda lol.
Make sure engine is super hot when you do it.

Did you install oil catch can ?

* i dont suggest you do it if you got no idea what you're doing *
Make sure your engine is really really hot, like when you open bonnet, you can hear radiator fan blow at full speed that kind of hot.
go drive like mad for 20min that type
spray fine water mist into intake. spray too much can cause hydrolock. so you must be a pro at it ya.
I dont like water cuz if any fuck-up your engine gonna suffer la.


seafoam is hydrocarbon based, just like petrol. comes to worst cause engine to stall and die only.

however water treatment can only do on intake. seafoam can clean fuel line and flush sludge build up (pour into fuel tank and crank case)
consider seafoam as all-in-one kind of treatment

This post has been edited by AllnGap: Jul 3 2019, 08:29 PM

Yes, then get spray and spray into intake.

Then whole car go do service flush all engine oil all out. Best is within 1-2 days after you pour into fuel tank. Make sure fuel tank almost empty then pour in and run it before refuel.

Basically whatever inside engine, injectors, fuel line, intake, exhaust all clean at once.

This post has been edited by AllnGap: Jul 3 2019, 10:20 PM

Check where is the source of leak. If top then no problem.
Better send your car to change the seals.
Confirm will worsen the leak cuz your mileage is super high

Adding fuel tank only cleans fuel line and valves
It's like cleaning 1/3 only

refuel full, then 1-2days go service......rev hard if can

must do the spray also

whats the cause of burn oil or is it engine oil leak ??
burn oil is worn piston ring

change exhaust pipe ah ??
i explain in simpler terms.

there are many pipes which carry oil, carry exhaust, carry air in the car
after sometime, it will be covered by dirty things.
so these chemicals go in and burn those carbon.

exhaust pipe is just one of the systems, there about 5 different systems that gets dirty

Works for all as long as the chemical can touch and burn off the carbon or fuel residue.

Seafoam is applied at all places like intake, fuel line and engine crankcase......if just apply at fuel, of course for DI, the cleaning can't be done for the valve because fuel is not sprayed behind the valve.

So it depends where you spray it.

recently i've sent my car install oil catch can, so opened the intake and it was very dirty.
so ask my mech whack 3 bottles of intake valve cleaner.
i dint take the after picture, but managed to clean the valve to a thin carbon coat, the whole chamber is clean but the valve not clean 100% because it's just chemical spray to dissolve the oil residue







this picture is how it looks like after i whack whole can of seafoam into it 2,000km ago. (car mileage near to 110,000km)

after cleaning with 3 cans of valve cleaner, the whole car when step oil will sound better (better, faster response), definitely pulls easier.
of course walnut blast is the best method, but i just went for normal chemical cleaning.

seafoam does the job but not 100%. want 100% have to go walnut blasting

This post has been edited by AllnGap: Aug 23 2019, 02:24 PM

Oil catch can depending on you car model. If PCV is on top then it's easy job. But mine need to remove whole intake manifold. After they remove I saw the carbon just ask them to spray and clean it.

If your car is GDI or direct injection, it's recommended to do at least do seafoam or if got budget, do walnut blast, then pour seafoam into fuel tank and engine casing. Then add in oil catch can.

Direct spray onto the valve is definitely much cleaner. (If spray via throttle body, the chemical need to travel one whole big loop before reaching intake valves.

Then the chemical sit there then suck all the chemicals out.

Looking at my picture I definitely think seafoam helps considering I just sprayed 2,000km ago which whole bottle. Yes the valves are still dirty but it's not caked up until air cannot flow pass it. The build up is just thick at the valve area. Whole chamber is dirty but not thick build up

This post has been edited by AllnGap: Aug 23 2019, 05:02 PM

liqui moly got 3 in one pack i think, same function as well.

the complete way is the crankcase, fuel tank and intake there.

if you add it to fuel tank, it will just help to clean the injectors and follow the fuel to spray on the combustion chamber,
cant really do a complete job.

at least you must spray intake there as your throttle body and intake valves get some cleaning