mikeo6000

Hello all, I have a slight problem at hand. I purchased a 2009 maxima sv with 129,000 miles a few months ago. The car has run very well and now have 137,000 miles. I brought the car to dealer ship for transmission fluid drain/refill and i was told by the dealer that the transmission fluid in the car is a red ATF fluid and it will require a tranny flush ASAP or more quarts of ATF fluid will remain in the system after doing a drain/refill. I refused to flush and told the dealer to proceed with drain/refill. The dealer completed the drain/refill and charged me 209 dollars. Now i want to get rid of the remaining transmission fluid so should i drain/refill with a CVT transmission fluid 3-4 more times within 100 miles interval? or should i do a transmission flush through the inlet port using a CVT fluid?. Doing a transmission flush through the inlet port will only involve turning the engine on &off and draining & refilling 1 quart fluid at a time until old fluid is out of the system. Which of the 2 solution will be the best and safest approach? I plan on doing this job by myself