Model 2006 V6 4.0 litre

[Max70]

Hello guys and gals,

I have a question here, its mostly technical and preferably would like expert technical people to give me a definitive and correct reply about my query, without offending anyone else.

Just over a year ago, almost 1½ years now, I changed my engine coolant and after looking allover my country (which is not that big), I could not find any yellow coolant or at least not of the specifications that it is required to use.

So I went to some shops and asked them for coolants that are good for my engine, they checked over their database and only 1 shop could help me with this, but the coolant color was BLUE (not yellow or green). BTW the coolant I had in my engine, which was probably changed before I even purchased the car, was Green.

So since I did not find the Yellow / Green coolant as it is suggested, I used this Blue coolant, which as I said, I was assured it won't harm my engine. The Coolant I used is

DELKOR G-48

, it looks blue to me, but could be greenish blue.

Can anyone tell me if this is good to keep using or if I should change it and get the Motor Craft one from abroad, even though it will cost me double the price?

The temperature held good for all this time I used it, I also drive my car only 3 hours per week and mostly cruising, only last September I drove abroad with it and could reach high speeds for long distances, and still the temperature held good.

I will be awaiting professional feedback about this as I do not want to damage my engine.

Thanks

 

[08TorchRedShelbyGT500]

I would try to acquire the proper fluid. What occurs with the current fluid in the car and how it affects the car going forward is a guess.

 

[Max70]

Thank you for your reply, I did not top up the coolant I did a total change of it and deeply flushed the engine with approximately 50 litres of distilled water before filling the engine up again with the new coolant. So I made sure there was no trace of the old coolant before adding the new one.

Reading this, I will now order some of the correct coolant Motorcraft yellow coolant and change it again next Summer (its the only time of the year I have some days off), I jut hope I did not damage or will make any damage to the engine till that time. It is not my daily car, so as I mentioned I just get it out on a Sunday for maybe a 3 hour drive 50-70 miles.

I will check again how much coolant does my engine take so I can order the correct quantity, plus maybe some extra for future top-ups. I will order the concentrated gallon container, I just need to know the mixing ratio and the total amount needed.

Thanks once again

 

[08TorchRedShelbyGT500]

Sounds like a good plan. When I use AI for some 'helpful' info, it really depends on how you ask a question. It assumed you didn't completely flush the old fluid. Since you did, that Gelling really wouldn't be an issue. But overall, the Yellow that everyone talks about is the go-to when it comes to coolant. I think you will be fine when you get around to changing back to the correct fluid. Good Luck!

 

[Max70]

Thank you,

I made sure to leave no traces of the old coolant, at least as much as I could, because I read that it is not good to mix different types. I also did not use tap water to flush the engine, since tap water contains chlorine and did not want to contaminate the inside of the engine with other chemicals, so I used distilled water. I'm not sure if I should have used tap water to remove the initial excess coolant then finally flush with distilled water to remove all residues.

When I changed the coolant I also changed the thermostat housing to an Aluminum one, since i heard many times the plastic ones are not that reliable. Now honestly, I do not know if I should also change the hose pipes too (when I'll change the fluid again), I do not know what this car went through and if in these 20 years of its life, anyone has ever changed them or not, So I'm not sure if I should or not, I purchased a new set last September, as spares, since I was going overland with it and did not want to be un prepared if anything had happened while on the trip.

I would appreciate any other suggestions.

 

[DieHarder]

If you're going to change out the coolant again anyway it's excellent preventative maintenance to change out the hoses too since like you say they're probably 20 years old. Given the average car owner unless they were leaking at some point it's more likely than not that they are original. Which reminds me I bought an entire set of silicone hoses so I suppose I should take my own advice and change mine out.

 

[Max70]

Any suggestion one can give on how to best flush the system from the current cooler?

I mean what's best to use, since the tap water we have, has what I think should be small traces chlorine (to keep water safe and drinkable), since we also find calcification most of the times on faucets.

I do not want to use tap water to flush the engine having in mind traces of chlorine might stick inside it :/