A bit of a stupid question but here goes. I've just purchased an Alfa Romeo and the engine coolants nearly ran out. I've struggled to purchase the recomended engine coolant in log book. Therefore, I bought a bottle from Halfords own brand which is recomended from halfords. Can I mix engine coolant fluid with the one purchased and the little bit of liquid left in car engine coolant compartment. If not how do I drain whats left in engine?
Thanks for any intake