My Volvo 850 needs 50/50. Why?
I recently flushed the system with Zerex G-05 (closest to G-48, origional Volvo coolant) but had to mix it down with distilled water for 50% (according to specs).
I wonder why? Why can you not use 100% pure coolant?
I recently flushed the system with Zerex G-05 (closest to G-48, origional Volvo coolant) but had to mix it down with distilled water for 50% (according to specs).
I wonder why? Why can you not use 100% pure coolant?