I bought a can of Trans Tune and watched one of your Youtube videos that showed to add 6 oz into the power steering fluid reservoir. Then it said to run the engine for 20 mins and turn the steering wheel every 3-4 mins which I did. It then said to suck out the power steering fluid and add fresh fluid, which I did. But then another video said to add the 6 oz to the reservoir and that was it. Which is correct? And if the last way is correct, should I add another 6 oz of TransTune to the resevoir with the new power steering fluid? My car is a 1996 Toyota Camry 6 cylinder.