Hi everyone,

I would like to perform Coolant Flush on my 380. i have few questions (for now):

what coolant to use? concentrated / pre-mix - what is the ratio for 380?
any special procedure how to flush system?

thanks heaps,
marcel

Just use the standard mitsubishi coolant (hopefully no one has put non-genuine coolant in it), it's premixed ready to go so there's no risk of causing any damage by mixing different types of coolant.

I want to flush the whole system - replace whole coolant. just checked with Mits and they selling their genuine coolant for $50 for 5l pre-mix (the premix is 50:50 i noticed on the bottle)... well this is ridiculous price IMO - considering that the coolant volume is 8.5 l... anyone any idea of after market coolant?

The nulon coolant is good - but steer clear of the Tectalloy stuff.

http://www.nulon.com.au/product_group/Cooling_Systems/

thanks nemesis - which of Nulon would you recommend - and how did you like UFC 129

I'm not 100% certain of the ratios but if the pre mixes are anything to go by then a mix of 2 parts coolant to 1 part water should suffice (however if anyone knows for certain feel free to correct me). Also I'd check with someone who knows if the 380s take the green or red type coolant as the two are not compatible.

I've missed the last few, I've gotta find a pub or sports bar that screens it.

I used Nulon Long Life coolant a few weeks ago, no problems since.
It's green, dunno if it comes in a red variety, the old fluid was also green.
Dumped & flushed the old fluid and replaced it with a 50/50 mix of new fluid & distilled water.
According to the bottle 50/50 gives 'extreme protection' or you can go 1/3 fluid & 2/3 distilled water for 'standard' protection.
Was going on special at SCA when I bought it, can't remember what I paid, I think it was around $35.

KJ.

thansk KJ - sounds good. did you use any coolant flush product or just drain and after that top up until full? when you draining it it goes all the 8.5l of coolant out in one go? or is there any residues... well just to know the right and correct procedure ;-) thanks m

Hi Guys, here is reply from Nulon technical guys

Hi Marcel,

Thank you for your enquiry.

The recommended coolant for the Mitsubishi 380 is Nulon Green Long Life Coolant. The mixture ratio is typically between 33% to 50% but the owner’s manual will provide the manufacturer’s recommendation. As this is a hybrid coolant there is no Borate which is ideally suited for the Mitsubishi. A complete flush of the radiator and cooling system is required before change over of the coolant. Please follow the manufacturer’s recommendations on coolant concentration and coolant change over instructions.

Radiator

http://www.datateck.com.au/lube/NulonAus/ImagesLube/LL.jpg

LONG LIFE CONCENTRATED COOLANT
Nulon Green Long Life Concentrated Coolant (LL) is the ultimate cooling system protection you can provide for your vehicle. It contains the latest hybrid organic acid technology (HOAT) anti-corrosion chemicals which provide maximum protection for up to 4 years or 250,000km (whichever comes first). Service Refill Capacity: 8.7 Litres


Regards,



Technical Support

www.nulon.com.au

Email signature

thansk KJ - sounds good. did you use any coolant flush product or just drain and after that top up until full? when you draining it it goes all the 8.5l of coolant out in one go? or is there any residues... well just to know the right and correct procedure ;-) thanks m

Mate,

I drained the radiator then attempted to flush the whole system by undoing the drain bolts on the block, one on each bank. But I could only find one of them and I couldn't get that one undone because it was in a hard to get at spot with no leverage. So I ended up flushing the system as best I could with tap water, pouring it in the radiator with the engine running and draining it out the radiator drain plug. Just kept pouring buckets full in until it ran clear. I think I got most of the old fluid out of the block but not all of it.
I ended up putting about 7 litres back in of 50% coolant and 50% distilled water mixture. I also removed, emptied and cleaned the overflow bottle, it had a fair bit of gunge in the bottom of it, don't forget that bit.

Repco have a 25% sale starting as of tomorrow until 22nd May...get some coolant at a cheaper price.
"Repco's prices are down on over 5,000 service and repair parts including brake pads, brake rotors, spark plugs, leads, filters, hoses, belts and more."

Mate,

I drained the radiator then attempted to flush the whole system by undoing the drain bolts on the block, one on each bank. But I could only find one of them and I couldn't get that one undone because it was in a hard to get at spot with no leverage. So I ended up flushing the system as best I could with tap water, pouring it in the radiator with the engine running and draining it out the radiator drain plug. Just kept pouring buckets full in until it ran clear. I think I got most of the old fluid out of the block but not all of it.
I ended up putting about 7 litres back in of 50% coolant and 50% distilled water mixture. I also removed, emptied and cleaned the overflow bottle, it had a fair bit of gunge in the bottom of it, don't forget that bit.

thanks KJ - just to clarify before I start little project - got all the components ready for this saturday morning.
1. did you use any coolant cleaner product?
2. when you were rinsing the system "with tap water, pouring it in the radiator with the engine running and draining it out the radiator drain plug" - did you pour it into the overflow/reserve tank or straight into the coolant little hole?
3. when you were rinsing - did you notice the engine temperature while rinsing? and what was it
4. when you were putting in Coolant mix - this time you were pouring thru the Overflow tank?
5. is it difficult to remove the Overflow tank - how many bolts etc. any special tools needed
6. did you premix coolant+water - or coolant first and then water or water first and then coolant

sorry to bother;-) cheers looking forward for the answers.

m

thanks KJ - just to clarify before I start little project - got all the components ready for this saturday morning.
1. did you use any coolant cleaner product? No
2. when you were rinsing the system "with tap water, pouring it in the radiator with the engine running and draining it out the radiator drain plug" - did you pour it into the overflow/reserve tank or straight into the coolant little hole? In the radiator 'top hole', where the radiator cap is. Guessing this is what you mean by "coolant little hole". Then left it for a good half hour (with engine off!) to completely drain.
3. when you were rinsing - did you notice the engine temperature while rinsing? and what was it No, didn't/couldn't check as I was doing it alone and manually pouring buckets of water down the radiator hole. Doubt if the temp would have risen at all.
4. when you were putting in Coolant mix - this time you were pouring thru the Overflow tank? No, down the radiator top hole where the cap is, same spot I poured the flushing water in
5. is it difficult to remove the Overflow tank - how many bolts etc. any special tools needed I removed the plastic splash tray underneath and let it drop out the bottom (lift it up first off the mounting bracket then it drops down). I couldn't see any other way of getting it out but maybe it will come out from the top with a bit of 'persuasion', saving the time & hassle of removing the undertray (and those pesky effing scrivets!). Unclip the rubber hose from the radiator first, just use pliers to squeeze the clip, loosen it and slide it back out the way.
6. did you premix coolant+water - or coolant first and then water or water first and then coolant Premixed 50/50 in a clean bucket, doesn't matter which you pour in first, just make sure you measure accurately.

sorry to bother;-) cheers looking forward for the answers.

m

See red text.

KJ.