The "problem" is not yours Haro...it'* the marketing gimmicks. The G05 coolant has been used in Europe, and several of the other imports manufacturers for some time. GM decided to go their own way with the Dex, while Ford and Chrysler held off a while and decided to go instead with the G05 based coolants. Then, through more testing, it was found that the G05 coolants mixed pretty well with Dex, and the old green stuff. It is still recommended to flush as much of the old stuff out before changing over. Since then, it'* been more marketing than anything else.
For a while, Valvoline Instant Oil Change was stocking just the G05 coolants to try and save money and stock space. After running into some problems with warranties (where the dealer would give people problems - mostly GM - with warranty claims if they ran the other coolants) they switched back to carrying Dex compatibles.
Black 2000 SSEi, Silverstar Headlights, Angel Eyes fogs, 3rd brake light overlay, hi-flo cat, drilled 180 degree thermostat, Intense FWI, PCM, shift kit, and 3.4 Pulley. Solid front mount.