coolant system cleaning!

[Pirvu Eugen]

Hi! I need your advice please!
My diseasel car... has the oil cooler damaged and alot off oil went into coolant. I bought the oil cooler but i need to clean the cooling system first from oil residues without damaging anything...
Do you know cleaning solutions, agents...something?
Thank you!
Eugen

[Error404]

Add a dishwasher tablet to the cooling tank

[Pirvu Eugen]

Really?!!/????
And? then just flush and repeat untill clean?
Will not damage aluminum?
Thank you!

[LHD_Kid]

Add a dishwasher tablet to the cooling tank

Are you yanking my chain - or is this really a solution?

[shaun5]

Add a dishwasher tablet to the cooling tank

I have done this on tractor engines that have blown there oil coolers (3-4 used in them) ran the engine up on a dyno to get it hot then flush it out.
Dont know if there is anything that would hurt on a petrol engine???

[Error404]

The dishwasher tablet dissolves in the water and as it is a surfactant it holds the oil in suspension allowing you to flush it it. Also cleans all kinds of other **** out too. Oxalic acid is really good for breaking down deposits in the cooking system too.

[Pirvu Eugen]

i will let you know how is it....
Regards!

[bikerjim]

I too have used cleaning products to flush a cooling system with very good results!

[ronaldvossen]

So uhm... Any brands of dishwasher tablets you can recommend or which we should avoid? What about vinegar? (OK, in won't dissolve oil)

[Vorsprung durch Technik]

In a recent Which magazine test results on dishwasher tablests, Sainsburys own brand of dishwasher tablet came out best.

[Bowie69]

I've done it too

Need to do it again, going the Oxalic acid route this time, it is apparently safe enough to leave in for a few days/a number of heat cycles, not sure I would leave a DW tablet in there as long as that -have you seen what they do to aluminium pans?

[hunker7]

SO you just pour Oxalic acid in the expansion tank? What sort of amounts?

[Bowie69]

Seen somewhere 3 tablespoons per gallon, so for an I5 I think that's about 6 required.

[Pirvu Eugen]

I've done it too

Need to do it again, going the Oxalic acid route this time, it is apparently safe enough to leave in for a few days/a number of heat cycles, not sure I would leave a DW tablet in there as long as that -have you seen what they do to aluminium pans?

This is what wories me too....as radiators and head is aluminum.
But i think that for 1 heat cycle will be ok.

[hunker7]

How did it go?