Effects of switching from green to G-05 coolant?
I have read many many threads on the differences but I have not seen any that have talked about, if anyone experienced any effects negative or good from switching out the green coolant to the g-05?
When I bought my car it had green coolant in it, and then I flushed everything and replaced the radiator....I put green back in it....its been less then a 2 years....I have been wanting to do a flush and refill as the car was so neglected and I opted to put in the correct g-05 this time...no idea how long green has been used in it... I was surprised how long it took to get the hose water clear, I was also surprised to see some rust colored water come out....I was even more shocked to see my heater core water was as rusty as it was when I did the first flush.... So now I am curious if the famous g-05 will net me any effects negative or good...at least ones I might see... |
The only effect I've noticed is peace of mind.
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NONE, ZERO, ZILCH, NADA. In short no difference.
Except you will be lighter - money-wise.
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It leaves a white residue on whatever it gets spilled or dripped
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If you plan to keep the car, switch it to NPG. I just did my standby generator, and it seems to work fine. It can also be run at zero pressure and boils at 370*, so no more worries about overheating. It also eliminates problems with electrolysis, corrosion, and cavitation. It's a little pricey, but you only have to do it once. I'll probably do my signature car when the next AF change is due. www.evanscooling.com.
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A difference that you can see? Not as far as I know.
Everyone has to make their own call on fluids. Some people would have you believe that your wheel bearings will seize solid and your family pets will all run away if you use anything except the Mercedes wheel bearing grease. I have a container of Lucas high temp that says otherwise. That said, I have always used the correct coolant, even back in the days before G-05, when I had to go see Uncle Merciless at the parts counter to buy the factory stuff. From my point of view, being able to get the correct coolant at a chain store now is a bonus. If you plan to change it every two years and you use the correct mix, it may make no difference. If after this change you plan to leave it in, I'd suggest for the price difference why take a flyer on Prestone? I can tell you that I have been on Mercedes forums and discussion lists since 1995 and on every one, the people with the most experience -- and the mechanics present -- regarded the use of the correct coolant as religion, more so than anything else (synthetic vs dino, gear oil, etc.). |
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if you have rust, you have sediment that's not been cleaned out.
period. putting in the proper coolant will not make ANY difference if there is already contaminants present. only way to see benefits from the correct coolant is to citric flush and drain EVERYTHING! pull the block drain, flush it TOTALLY CLEAN, pull the monovalve, and get all passages free of any sediment, pull the hoses to the heater core, and flush that, and REMOVE ALL TAP WATER from the car. flush with distilled once all traces of sediment, and rust are clean. THEN after that's drained, you can fill with the proper mixture for your climate of DISTILLED water and G05/MB coolant, and IF you drain and flush and fill every 2 years, it'll be pristine for the rest of the vehicle's life. if you do the same and use GREEN, it'll be fine, pristine and will last equally long. on the turbo cars with the plastic tanks, it's said the G05 will better protect the plastic... YMMV |
^^^^ agreed on all that, I am totally paranoid to try a citrus flush on this car, it has the evil servo system with the miles of piping and the car has sat for at least 20 years of its life....when I change the coolant, I pull as many hoses as I can and hook up a high pressure nozzle on the garden hose, that's as far as I want to go....I just know doing a citrus flush will kill the heater core...
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One can also use white vinegar (citric acid replacement). Don't forget to run the heater while the engine is running with the vinegar/citric acid is running through it. Then Back-Flush the engine, which usually results in glops of rust and contaminants falling out the other end.
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Someone ran straight water in my first 300SD and even after 3 citrus flushes, the coolant is still mud. The heater core has not leaked and the climate system works flawlessly. I only run G05 in my Mercedes cars because I believe it helps with the plastic deterioration issue and it is highly recommended as an OEM compatible coolant.
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Keep in mind that the proper way to flush the system is to deoil before you descale. You are supposed to deoil whether there is evidence of oil in the system or not and it is so easy to do, why not do it right? The citric acid is the descaling agent. Something like Liquid Tide or dish washing soap is a good deoiling agent.
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A good deoil agent (simply a surfactant) which is cheap is PhotoFlo. Half of a small bottle would completely flush the system quite well. It is a very strong surfactant but also leaves almost no detectable residue (it can't or else we'd have stains on our photos.) After that, the vinegar or citric flush.
I switched to the factory recommended stuff last fall and haven't looked back. The coolant is still nice and slightly blue after all this time. No rust seen after I flushed with a hose then flushed using gravity and a lot of distilled. Phil Forrest |
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