kraji

my engine coolant is low how should i top it off?
i was reading the manual and it said i have to mix with
water??

anyways i bought sum engine coolant fluid today
called prestone or somthing? so umm.. what should i do?
how should i top off the coolant?

Old Rotor

More important is why is it low!! I have had many rotary engines and if it is low where did it leak too? The overflow or expantion tank, is it empty? Was it ever checked before? You have a sealed system and when the water gets hot it goes into expantion tank. If you have a leak somewhere it will empty out and then start empting your cooling system. Find out where it is leaking. You should not have to be adding water. Mix it according to the coolant instructions. Do you see a puddle under your car? How much water was missing?
.

kraji

well i never seen any leakage in my coolant. and when i start my engile i see water dripping fromt he exhaust but thats normal isnt it?

yeah my coolant is sealed correctly
thats why i find it werid that its some how low

9G Redline

My coolant light comes on every now and then too. It kinda freaks me out considering how much I love my car and try to take care of it. I've never seen a puddle under my car and I do walk-arounds every time I drive her.

NoTears316

You may want to ensure that you arent getting any coolant into your oil. That would be bad.

V_for_velocity

Yeah, let a mechanic be your friend.

kraji

engine coolant fluid can get into engile oil?

Brice-RX8

Is it possible that coolant/water gets hot enough to evaporate off?

Go48

It's a closed system, so unless you overheat the engine causing the coolant system to exceed the 16 psi pressure that contains the coolant in the system, it ain't gonna evaporate. Overheat the engine to the point of overcoming the containment and yeah, it will likely "evaporate" in a pretty violent manner.

NoTears316

It's not something that just happens, but yes, if something is wrong it is possible. If you find an indication of engine oil in your coolant area it could be an indication of an engine or radiator problem. When you check your oil, it will have more of a "chocolate shake" appearance.

army_rx8

^yes brown and chocolate chake liek..is a sign of contamination..might stick too (btu not too much if it was thicker it wodl stink real bad)

kraji

what would happen if the coolant is over filled?

staticlag

explosion

staticlag

Overheating the engine past 16 psi will cause the water to evaporate out of the pressure cap, causing you to lose liquid. But as long as the cap is working correctly, the system will remain at 16 psi, though liquid will be lost. If you have a hole or a leak on the other hand, the pressure will instantly want to drop to zero inside the system, causing an ole faithful type explosion.