Originally Posted By: SubLGT
Subaru requires a 30 month/30,000 mile change interval with their "long life" green benzoate/phosphate coolant. But the newer blue coolant can go 11 years/137,500 miles on the factory fill.
Well, then, that's what makes me wonder if I could use the blue Extended Life Honda Genuine Type-II and be capable of leaving it in longer than using the BA offering?