I drained my radiator fluid in my 2001 dodge ram 1500.i filled with water and ran the engine and drained the water.i went to pour the new coolant in and it didnt even take 2 ggallonssuppose to take 5?

R u sure it calls for 5 gals?

5 gallons would be the radiator and the block capacity

I have a size 318 engine and I only use less then 2 gallons..

I just read that a 360 took 15 qts

My 94 ram 1500 5.2 only took a little under 2 gallons as well. Manual says it requires 20 quarts/5 gallons. But yeah same thing, didn’t even fit 2 gallons/jugs

I did the heads on my 2001 dodge ram 5.2 it took 5 gallons. I've took bottom hose off to drain before and it took about 2 gallons.

Hand smacks forhead. It takes 5g but 50% of it stays in your heater core and block. So you would only need to add 2.5 gallons give or take a .5