question about coolant....

[cvkit17]

Actually, flushing it is fine. Running without coolant isn't.

Someone posted something useful about coolants in the 1st page, it raises the boiling temperature of the water so it doesn't evaporate too quickly. Air is a bad conductor of heat so having more water there is good for dissipating heat mah.

Can frequently flush the radiator with those radiator flushing products we see at hypermarket or even some workshop? I thought some of them consists of strong corrosive materials...I'm still in dark water in this haha

Water alone is a good heat conductor. Of course when mix together with coolant, it can be better. I had been using tap water for my 11 years old wira and it works pretty well, except that there are contaminants and rusts in the reservoir and radiator haha. And I never flushed it before.

I have read a test stating that running on a cool engine does not benefit. It actually loses power. No it has nothing to do with old engine myth where you gotta warm up the engine. And it's not a wankel. The engine should be in between hot and cool like how our car temperature like when it rolls out of the plant. The reason being that is the engine parts are at their optimum temperature where they do not expand or retract too much. Something like that....hmm...let me dig that article out:hmmmm:

 

[Izso]

Can frequently flush the radiator with those radiator flushing products we see at hypermarket or even some workshop? I thought some of them consists of strong corrosive materials...I'm still in dark water in this haha

Water alone is a good heat conductor. Of course when mix together with coolant, it can be better. I had been using tap water for my 11 years old wira and it works pretty well, except that there are contaminants and rusts in the reservoir and radiator haha. And I never flushed it before.

I have read a test stating that running on a cool engine does not benefit. It actually loses power. No it has nothing to do with old engine myth where you gotta warm up the engine. And it's not a wankel. The engine should be in between hot and cool like how our car temperature like when it rolls out of the plant. The reason being that is the engine parts are at their optimum temperature where they do not expand or retract too much. Something like that....hmm...let me dig that article out:hmmmm:

That's why we have thermostats la. It only opens at given temperatures to cool down the engine mah.

For those people who throw away their thermostats, their engines take longer to reach optimum temperature (much longer) therefore increasing the wear and tear of the internal parts. But at the same time also depends on how good quality your oil is.

 

[vr2turbo]

I don't put coolant now because I flush every now and then every month, water is still muddy after a few days.

Muddy after a few days, probably because got no coolant, the cast iron engine block is rusting.
Coolant actually acts as lubricant for the water pump and also anti rust for the engine.
You should pour in coolant and then flush once every year or two

 

[YYC]

Muddy after a few days, probably because got no coolant, the cast iron engine block is rusting.
Coolant actually acts as lubricant for the water pump and also anti rust for the engine.
You should pour in coolant and then flush once every year or two

I will use coolant and try for a period. Many thanks.:top:

 

[vr2turbo]

Can frequently flush the radiator with those radiator flushing products we see at hypermarket or even some workshop? I thought some of them consists of strong corrosive materials...I'm still in dark water in this haha

Water alone is a good heat conductor. Of course when mix together with coolant, it can be better. I had been using tap water for my 11 years old wira and it works pretty well, except that there are contaminants and rusts in the reservoir and radiator haha. And I never flushed it before.

If your radiator is not rusty, just flush with water. If use flushing chemical, make sure they are completely flushed out. Those chemicals are corrosive so running them in your system can cause your system to leak.
I also use tap water to refill my radiator. Been using them in all my cars and for years and years already...of course I add in Toyota Long Life coolant....

 

[cvkit17]

Been using them in all my cars and for years and years already...of course I add in Toyota Long Life coolant....

Does it build up residue / rust in the reservoir or radiator?

 

[vr2turbo]

Does it build up residue / rust in the reservoir or radiator?

The two current cars also quite old, 17 and 21 years. Using with Toyota Long Life coolant there will be a little dirt/rust in reservoir after 1 to 2 years use. Probably coolant break down by then. Usually will flush and renew the coolant by then.....

 

[^pomen_GTR^]

The two current cars also quite old, 17 and 21 years. Using with Toyota Long Life coolant there will be a little dirt/rust in reservoir after 1 to 2 years use. Probably coolant break down by then. Usually will flush and renew the coolant by then.....

yeah...using toyota coolant also for 2years...

previously realized during servicing my car that my coolant level was low (inside radiator) and saw reddish-brown deposits inside the rads...

at first just topup with normal water...but yesterday during long travel in B-road (went to felda visiting some relative) i noticed that my car temp. raised 1bar from normal under hot midday.....just driving +-100km/h with occasionally short sprint to overtake slower car....

so went back at home after that,bought green coolant,flush my rads with normal water and fill up with fresh green coolant.....today would flush again and refill my rads with green coolant along with radiator cap replacement....


scared later it would lead to overheating.....will see afterwards...perhaps gonna need some proper radiator flush liquid...any suggestion?

 

[vr2turbo]

yeah...using toyota coolant also for 2years...

previously realized during servicing my car that my coolant level was low (inside radiator) and saw reddish-brown deposits inside the rads...

at first just topup with normal water...but yesterday during long travel in B-road (went to felda visiting some relative) i noticed that my car temp. raised 1bar from normal under hot midday.....just driving +-100km/h with occasionally short sprint to overtake slower car....

so went back at home after that,bought green coolant,flush my rads with normal water and fill up with fresh green coolant.....today would flush again and refill my rads with green coolant along with radiator cap replacement....


scared later it would lead to overheating.....will see afterwards...perhaps gonna need some proper radiator flush liquid...any suggestion?

If only a little of sediment then radiator is not clogged. If clogged, then need to send to radiator specialist, open and wash.
If you need chemical flush, off the shelves stuffs should do, or get from spare part shop, but make sure you follow the instructions on it's usage as those stuff are corrosive. Finally, make sure you completely flush out everything before refill with water and coolant.
What green coolant are you using? As far as I know those coolant are of no use. I tried many brands and they disappear after one or two months only, means water turn clear. That was why I change over to the Toyota coolant. More expensive but good, can last up to 1 to 2 years.
Not sure how you will flush the radiator but most people release from the drain plug of the radiator.
Don't do that.
Remove the top hose joining engine to radiator (radiator side). This is water return from engine to radiator, so when flushing the chemical out, plug your running water hose into the refill hole at radiator top and then start the engine. Water comes out from hose, clean water goes in from refill hole. Flush until water comes out clear and clean.
Let me see if can find my photos to show you.....found it....

 

[^pomen_GTR^]

If only a little of sediment then radiator is not clogged. If clogged, then need to send to radiator specialist, open and wash.
If you need chemical flush, off the shelves stuffs should do, or get from spare part shop, but make sure you follow the instructions on it's usage as those stuff are corrosive. Finally, make sure you completely flush out everything before refill with water and coolant.
What green coolant are you using? As far as I know those coolant are of no use. I tried many brands and they disappear after one or two months only, means water turn clear. That was why I change over to the Toyota coolant. More expensive but good, can last up to 1 to 2 years.
Not sure how you will flush the radiator but most people release from the drain plug of the radiator.
Don't do that.
Remove the top hose joining engine to radiator (radiator side). This is water return from engine to radiator, so when flushing the chemical out, plug your running water hose into the refill hole at radiator top and then start the engine. Water comes out from hose, clean water goes in from refill hole. Flush until water comes out clear and clean.
Let me see if can find my photos to show you.....found it....

yep..done via remove top hose... (actually i flush my rad twice that day)..once after arrived at the relative's house.....(because i saw some water dripping corrosion line at hose tip..turns out the hose not tight enough)


the later flush+fill with new coolant when i'm back home..this one i just drain via drainplug.... (lazy to remove hose and lazy to take out toolbox


i forgot what brand was the green coolant...bought it at mobil at my hometown.....rm9/can (less than 1liter can)....thats why i'll re-check again and see if the green water turns into mixture of reddish-brown old coolant deposit then i'll flush again using normal water.....if the green coolant doesn't really rinse the inside radiator then i have to flush using proper flush chemical.... huhuhuhu....


p/s:my bike also using green coolant (previously using red toyota coolant)...i had some overheating recently...and flush and running with cheap green coolant now seems ok and less heat

(not really sure if related..but both have been using toyota coolant from the same bottle)

 

[Izso]

Hey VR, I have a disagreement on that method of flushing. I prefer to pull out the hose that's attached to the thermostat and remove the thermostat. At least you get to flush out the fluid inside the block as well.

But I guess your method is good if only just to flush the radiator

 

[vr2turbo]

Hey VR, I have a disagreement on that method of flushing. I prefer to pull out the hose that's attached to the thermostat and remove the thermostat. At least you get to flush out the fluid inside the block as well.

But I guess your method is good if only just to flush the radiator

Thermostat harder to remove. Of course remove thermostat, flush is faster, but some even scare to remove top hose, some more ask them to remove thermostat will be tough....ha! ha!
With thermostat on, just have to run till operating temperature and it will open, of course will close a few times when cold water reaches the thermostat....

 

[^pomen_GTR^]

Hey VR, I have a disagreement on that method of flushing. I prefer to pull out the hose that's attached to the thermostat and remove the thermostat. At least you get to flush out the fluid inside the block as well.

But I guess your method is good if only just to flush the radiator

aha..u've mentioned that also...

been thinking to check the thermostat as well..because i'm worried that part might have heavy deposits of rust sediment that could lead to blockage...

thanks for reminding me about that...


p/s:might as well remove my Throttle body water line also at the same time

 

[Izso]

Fuh.. flush radiator... remove TB! HAHAHA

 

[vr2turbo]

Fuh.. flush radiator... remove TB! HAHAHA

He mentioned the TB water line only, I think.......:rolleyes:
If not, everything connected he start removing.....kakakakakaka

 

[^pomen_GTR^]

TB waterline only lorhhhh....

MMC TB very crude version one....got water line for keeping it from freezing in winter (not related to our climate but its still there)....

and also heat contributing factor that would result of melted stepper idler gear...so i'll just re-loop the line without passing TB...so less heat to the idler gear=less melting risk

 

[damone]

Any of you guys had experience with Lucasoil coolant?

They recommend tap water, not distilled though.

 

[amrancharger]

did i shared this coolant reviews with u guys?

have a look... :)

The journey begins: Coolant Review

 

[vr2turbo]

Any of you guys had experience with Lucasoil coolant?

They recommend tap water, not distilled though.

I have been using tap water all this while, just make sure it is clean or best if you have water filter...