Hello, i just drain old coolant from my 01 f4i and still dont know which coolant should i use . Iam from florida ( KW) an its pretty hot here sometimes ! So what would you recoment ? Water wetter or engine ice ? Thanks

 

I use 1 bottle water wetter and fill the rest with distilled water . It drop my temp gauge down a 1/4.

 

For me it depends...water wetter for track and engine ice for the street.

 

I did the same and so far the bike really, really, really likes it. I rarely hear my fan kick in now.

 

water wetter or engine ice are good, but you also need anti-freeze for it's anti-corrosion protection. Add the water wetter or engine ice and top off with a 50/50 mix of anti-freeze and distilled water.

 

>> wagzhp. What do you use in your bike? Do you put water, coolant AND wetter?

I know someone that was mixing purple over (or liquid ice- I'm not sure which) and water wetter.

 

Meant anti-freeze, not coolant.

 

I recently replaced my coolant in my f3 with Engine Ice. According to the label on the bottle it is premixed and uses deionized water. It is recommended on the bottle that you do not mix with water. (Don't know about mixing ainti-freeze in with the engine ice) straight from the bottle it should protect to 246 degrees F. Freeze protection -46 F. It was tested in southern Florida and is said to reduce engine temp by 50degrees F. I have noticed that my engine runs pretty cool; but here in New Jersey we have not had any real hot weather yet.

 

I'm running water wetter with BMW premixed 50/50 antifreeze.

Bimmers are my preferred brand of car, but they have notoriously weak cooling systems. They are particular about requiring special coolants that won't corrode the aluminum components in the engine and cooling systems. So, since the BMW brand of coolant is OK for the cars, and I have it on hand, I also use it in the bike.