Hello, I have a 2009 Toyota Yaris & 2005 Toyota Tacoma V6. Both are about 90,000 miles. Mixed California city & highway use. I have pretty much used Redline 5w30 for most of the life of the vehicles with OEM filter & oil changed every 4-5,000 miles. I'm happy with the Redline oil, especially since it was very cheap for me to buy. Now I'm unable to buy it cheap & I'm seeing many posts about other oils being better in quality like Pennzoil Ultra & Castrol Edge. What do you guys recommend & why? I'm reading some posts about Redline not being as good as before & not sure why since the wear of my engines is excellent & I passed smog with nearly perfect readings. No oil consumption, or engine problems. Thanks!