Hello all, hoping somebody can help - I need to change the coolant in my 1994 RX7 tommorow, what colour should I use? Is there any problems I can avoid when changing the collant?

Cheers

 

Regular 50/50 Prestone is fine.

Spend some time in the 3rd gen fAQ thread so you can learn how to properly bleed the coolant system after changing or your next thread is going to be on questions about overheating.

Link to 3rd gen FAQ thread:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/faq-3rd-gen-other-useful-links-68640/
Scroll down to C section for Cooling where you will find this awesome thread:
https://www.rx7club.com/3rd-generation-specific-1993-2002-16/big-fat-fd3s-cooling-thread-571088/
Read it before starting.