It's compatible! Check for yourself, here's the link:
Great stuff; made a large difference in my car. But, like most cars, had an 80/20 mixture of anti-freeze/water.
After flipping the ratio around (20/80) plus 1-1/2 cans of WW, it really runs cool. How cool? 85F day, 80% RH, no A/C, highway driving runs it to 82-85C.
[Edited by JimF on 05-09-2001 at 03:18 PM]