Should I change out the engine coolant that was added redline water wetter?

To many people think the TOYOTA SLLC is some magical lifetime formula. It's not. Whether adding 6 oz of redline water wetter will "contaminate" it is unsure. If you feel uncomfortable about it, change it. I personally would not go more than 2 years or 30,000 miles between changes. But what do I know? I'm just a lowly mechanic.

 

I would leave it alone. I think you are good waiting until 100K miles for the first change, just look at the coolant in the overflow container once in a while. If it starts to look like there are any sediments or rust then I would change it at that point.

 

slightly alkaline?

 

I think this is OK. If you care to measure precisely, you should be measuring the coolant in the radiator, not the coolant in the overflow container since the overflow container was filled with the Redline supplement.

If you were serious about actually wanting the Redline supplement to enter your engine's cooling system, you should have removed the plastic cover over the radiator for access to the radiator cap. Then open the radiator cap, suck out sufficient SLLC to make room for the supplement, pour in the supplement and then top off the radiator with SLLC. Putting the supplement into the overflow container does very little to the coolant in the engine. The only exchange of fluid between the radiator and the overflow container occurs during heat/cool cycles when the radiator cap allows a tiny amount of fluid to move back and forth between the radiator and overflow container. The engine coolant heats and expands, creating sufficient pressure to open the radiator cap valve so fluid can flow into the overflow container - then cools and the resulting vacuum draws fluid back.

If you look at the overflow container when the engine is cold vs. hot you will note the difference in fluid level is very small, perhaps 1/8" or less change in height.

 

Been using Redline Water Wetter in both the Ice Coolant and the Inverter Coolant for 6 years. It has a very good anti-corrosion property too it. Been using that product for 30 years. It works.

Looked in the rad by opening the rad cap the other day when I had the plastic valence off and rad looks mint and I changed the Inverter coolant and added half a bottle to that new SLLC at 30K miles. I have very aggressive agitation in my Inverter Coolant tank and no longer see the red dust (aluminum salts) that was constantly on the cap before.
Inverter runs very cool even down here in florida.

Your probably acidic because its the original fluid in the car and its 4 years old. Redline WW can't fix that 4 years later. It can prevent it though. Its best to add to new fluid.

I would get that fluid changed and the Inverter coolant changed too if you can afford it and plan to keep the car a long time and get the trans fluid changed too.

It's a great car all you have to do is keep after the fluids. Fresh SLLC and some WW and your ICE water pump will last a very very long time. Same with the Invert coolant pump. My WW cooled Inverter pump worked perfect right up till I got it replaced with the recall 6 months ago. Didn't need replacing but they did it when I took the car in for the steering shaft recall. I made them clamp the hoses off instead of dumping the fluid as it had pretty new fluid and WW already in it. They liked that.

Btw, I am running Redline D6 trans fluid too going on almost 55,000 miles. Car runs perfect.

 

Oh Ok. I think its a good product. Has worked very well for me for years. But really requires a fresh change of coolant to work.

Btw, I doubt you have fresh coolant with your new pump recall as most dealers just clamp off the hoses with a duckbill, throw in the pump and then top off the coolant tank.

You can tell if its fresh as its a very vibrant red and has very aggressive turbulence.

 

Alkalinity will attack aluminum.

 

I suggest the OP should test new SLLC with a pH strip and see what that shows. I believe that antifreeze will register on the alkaline side but remember that it is packed with anticorrosion agents.

 

Hell, water will attack aluminum. One of the most corrosive metals.

Whats interesting is the unbelievable amount of tiny aluminum cooling channels in the Inverter. Amazing amount of surface area in that little box. Quite some engineering. But alot to corrode also.

It behooves an owner to keep very high quality coolant in the Inverter loop.

 

...and fresh coolant. Respectfully, waiting for signs of of rust and sediment before servicing means you waited to long.

 

'nuff said.

Redline WaterWetter® Review | The Truth About Cars

 

Cooling Additives - Redline Water Wetter - Import Tuner Magazine

 

I know you hate reading all the threads before you make a comment but please make an exception and read post #12.