Thread: Liquid Intelligence 238 & Desludging oil from the Cooling System

Originally Posted by Lionelgee

..... Plus, I am constantly watching the temperature gauge like a hawk all the time.

Kind regards
Lionel

Which vehicle?

When you say temperature gauge, do you mean the vehicles gauge? or an aftermarket type?

If vehicle gauge, many(including myself) will say waste of time. It only shows you that the coolant already got too hot.

Maybe a good time to fit an additional temp gauge if you can.

On the topic of coolant flush.
I have a 300 tdi. it came with regular green coolant, no worries, and my plan was to replace coolant soon after I got the car.
All done, but it had a lot of rustiness once flushed out. Added straight water for a few days, water got rusty too.

No oil, just constant rustiness to the water ever time it was dumped and fresh added.

So bought a bottle of CEM's flush/protenctant/pseudo coolant.
They make all manner of claims.

Anyhow, did two flushes.
First one brought out a lot of brown filth, and created a similar sounding 'oily'(or slimy) residue in the expansion tank.
Pulled that out, cleaned up, all good. dumped flushed water out again .. even more brown than before.

Flushed block again with hose, again more brown water ejected.

Did this all over again one more time, and a lot less brown stuff in the water this time.

During flushes, no coolant used, just water and this CEM stuff.

Finally filled with straight water one more time ran for a week maybe more .. and finally clear.
Water pump started leakign from the weep hole, so good opportunity to change this out too.
Long bolts confirmed a lot of rusty sludge has built up inside the cooling system, but all standing water seen in the pump/block area was clean.
New long bolts fitted, coolant added .. I feel better after this ordeal. Can't recall the time involved, maybe 3 months(over one summer) .. but all done and dusted.

Did the CEM flush help? I think so. Could another product have helped? probably.
This is my experience. Not scientific tho.

Topic was done to death a while back Lionel.

Just get your cooling system back up to spec and run a good coolant. Use good parts also!

Originally Posted by Tombie

Topic was done to death a while back Lionel.

Just get your cooling system back up to spec and run a good coolant. Use good parts also!

G'day Tombie,

Thank you for your post. So there was a topic on AULRO especially about Liquid Intelligence 238 was there? I found a thread about 230 not 238.

Otherwise, can you please specifically point me to the URL for the thread where the "Topic was Done to Death"? I would like to read it in full.

I inherited the maintenance from previous owners; or apparently lack thereof. I am now starting essentially from behind. This is something that I hope to remedy as soon as possible.

Kind regards
Lionel

G'day Arthur,

It was a factory fitted temperature gauge. However, the gauge has the same sweep and markings as Smiths temperature gauge quarter arc- just without the degrees of temperature labelled. The engine oil is minded by a "too late now" warning light. Which did not come on.

Yes, an oil pressure gauge and an alternate temperature; plus, a water pressure gauge from Auto Meter - specifically their American made ones are on the shopping list. From a website's Oil Cooler Failure's description the galleries in the oil cooler corrode and fail. Subsequently, the oil flowing into the coolant side of the cooler increases the coolant pressure. Hopefully, between the gauges displaying engine oil pressure going down and the coolant pressure going up - plus an increase in water temperature, it might catch any future troubles early on in the piece.

Is the CEM treatment you mentioned this one...? Cost Effective Maintenance (CEM) RMI-25 Cooling System Treatment - accessed 13th February 2021 from, RMI 25 - Cooling System Treatment & Radiator Coolant Treatment

Kind regards
Lionel

This will do what you want.

Oil Mixed With Coolant In The Cooling System - Cleaning Tips

Then throw a bottle of Penrite Cooling System flush in following directions.

detergent..

Originally Posted by Blknight.aus

detergent..

Hello Dave,

Yes, earlier today I watched a couple of videos that use different brands of low suds dishwasher powder - as in the machine type. Not this type accessed 13th February 2021 from, Palmolive Ad 1989 - Madge - Celebration. - YouTube

I wonder if the tablet variety of dishwasher powder put into the header tank would work? One lump or two ...

Kind regards
Lionel

I normally just mostly fill the system with water, bleed it and then add the desired amount, in something like a series I throw a cloth over the radiator cap neck with the cap off in everything else I just brim up the expansion tank

run it till hot and then flush away.

if i know I'll be doing it a few times I fit a T piece with a tap on it to a heater hose line and hook up the garden hose to do power flushes

once the oils out I use a reverse flush gun to stir it up on the flushing cycles