then go drain everything out of your car, change new oil twice if u havent done it before. new 15min oil will look like 4month old oil (kopi)
thats how dirty it is, carbon all out

1. Old oil + seafoam. Run for a week.

2. Drain above. Add in new oil (add cheapo oil as his is sacrificial oil). Run for 20min.
- I did mine, the fresh new oil turned into coffee in 20min run. 

3. Drain above. Add in new final oil.

- must do this step carefully if you dont want check engine light to turn on,
connect the small tube like in the video, try to connect back the rubber hose that connect to the throttle body. then start spraying.
if the rubber hose is not connected properly, the engine light warning will come on because the MAF sensor right before intake cant detect any air and will cause engine to choke.

watch this.

seafoam spray tutorial

1. Old oil + seafoam. Run for a week.

2. Drain above. Add in new oil (add cheapo oil as his is sacrificial oil). Run for 20min.
- I did mine, the fresh new oil turned into coffee in 20min run. 

3. Drain above. Add in new final oil. This time only change your oil filter.

The seafoam just add like half bottle to engine. Balance half into peteol tank near empty. Fill up run that tank finish for like 1 week then go service.

No need to remove oil when add seafoam as until your service interval the oil also become lesser.

Erm, thing is it's still using the old oil filter, I don't know what's the effect of after flush still using an old oil filter with new oil.

When I did my flush my car just left there for idle for 15min, no revving at all. Sacrificial oil came out tea colour.

I guess running a day wouldn't hurt

130,000km oil with Seafoam engine treatment and Seafoam spray
this one no sacrificial oil. put in new Shell full synthetic oil
the car now press a bit of oil can move smoothly, previously running at 100kmh engine sound was super rough. now not so rough

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my other car with 80,000km mileage. (just run flush for 20min)

consulted my friend (the one with 200,000km on it) what thing he use to service the car cuz his one tank can go 700km. mine only 550km.

so conclusion is a lot of things (my engine should be super dirty with oil deposits, so the whole car is not responsive, and not so fuel efficient)
this service interval i switched to Liqui Moly full synthetic + engine flush + additive (to reduce friction)

this is what i did with it, first spray Seafoam valve cleaner into intake and rev everything to clear valve.
then drive to workshop to ask them do engine flushing.

OLD engine oil (7000km) after adding flush and running it for 10minutes. like KOPI-O

then because i watched some videos that do flushing on cars that never done it before (run 100,000km never flush) they had to flush - drain - add new cheapo oil to run 2nd round (run 10-15min) then drain. THEN only add in LIQUI MOLY.
Basically DRAIN THE OIL TWICE if not the new oil added will be instantly dirty !!

this is the sacrificial cheapo 4L engine oil (new engine oil just run for 10min) that i added in after draining the oil.
pour new oil in immediately turn dark, dirty like teh O.

why would u want to do that ?

oh, okay, but not looking at the kopi colour also can feel the difference d.
unless your car is still new like 2year old.

whats the diff btw this and techron and hitech synthetic cleaner

and ron 97 ron 100

all say clean clean clean

and a few ques to TS

1) how often many k km need to start do?
(for you)

2) the cheap engine oil u use to flush kopi O - fully synthetic or semi enough (since just to flush)

3) fuel economy better...so if I do this regularly per say 50k km, I dont need to pump ron 97 d? since economically this is much better than consistent ron 97 (also to clean engine)

4) If I dont wanna get my hands dirty, I do the first few steps (pour in engine oil hole and petrol tank) and let shop do the rest , which shop can do it?

haiyo, seafoam out of stocks....who go sapu all lah

There are these local made carbon cleaner (not sure but the packaging looks cheesy) that does the same thing like Seafoam but it is more expensive!

JV Auto Lube - Engine Carbon Detox
https://shopee.com.my/JV-Auto-Lube-Engine-C...56533.883559347

So anyway..where can get Seafoam? I don't think I saw it at Ace Hardware when I went there a month ago.

car is made of metal, rubber (gasket/suspension/arm joints) and plastics
everything have it's lifespan because steel rusts, rubbers harden and crack, plastics crack.
in term of leak, it's the gasket or the material which is usually rubber/plastic material has already exceeded it designed lifespan.
lets say you drive that car for 15years. gasket already fail around 10 but havent leak yet.

There are many ppl that never do engine flush (like my dad's car), so those engine oil form grease like gunk which hardens and sometimes it formed a coat.
When the above happens, usually the car will feel kinda crap, cuz the sludge will cause engine to have higher friction, sometimes it might clog your oil pump or even cause your engine to overheat because engine oil function is not only to lubricate but to be splashed around so that it cools engine as well.
When u try to overtake the power doesnt come, like hesitating, so you tend to floor the pedal to make the car pull, thus worse FC
so normal people dont see the loss of fuel efficiency, loss of performance as a problem.
they just know new cars FEELS BETTER but they dont know why their old car FEELS OLD.
'bocor' problem
When they do engine flush, the engine start to leak, they get to see the 'bocor' problem.
By right, changing gasket is part of the preventive maintenance, but since no bocor we use until it bocor   
usually when bocor, mech open up find more worn faulty parts, (bills pile up) so ppl are very afraid of BOCOR.

But i find there are 2 types of people around. one is dont care can get me from point A to point B. the others are the more power hungry ppl like me.
high performance car workshop all do engine treatment everytime they service, while normal workshop dont do it because they fear later customer car leak oil and get blamed for it. cuz the customer always think that no bocor = no problem. (basically one is willing to spend to make perform 100%, the other simply DGAF can jalan okay d)
on the leaky gasket, i found another product that can rejuvenate the seals inside, can be used on engine, gearbox, transmission oil.
so this is how your engine looks like without engine flush.

If you prefer car to perform well then do it like every year once.
U will feel your car lighter, easier to overtake

Bocor no bocor really depends on luck.

I do this treatment everytime my throttle response feel crap. Like car can't pull instantly when pedal on it. Or when I need to floor the pedal to make the car pull

Anyone tried Marvel Mystery Oil? I bought a bottle from Ace cause they seems to be stocking this and Seaform in quantity.

Tried Seaform. Next I am going to try Marvel.