Originally Posted by
jammin32j
I usually change mine every 4 races.
Originally Posted by
bigjayjay1
good rule of thumb every gallon for me sometimes more for tuning.
+1 to every 4 races or gallon of fuel. Seems to be about the same for me. The fluid will break down over time and it can look good but it will not perform the same so it needs to be changed as above.