I did an oil change on Thursday night to my RAV4 Hybrid. I used Rotella Gas Truck 0w20, since I got it at a good price with rebate. The oil passed Toyota's requirement of it needing to be ILSAC GF-5, so the gas truck label on the bottle didn't phase me one bit. Yesterday, as my wife was driving it, the vehicle was doing strange things. After a while, there just seemed to be more room. When she got work and went to park in her normal spot, the parking spaces seemed smaller. At first, she just thought it was just a delusion. But she only realized that something did happen when she got out. The vehicle was further from the ground. She got out and noticed the back half turned into a pickup bed. Now my wife is short, so she was not amused with this problem. She told me when coming home, that I needed to put running boards on the RAV4, so she can get in and out better. There goes the cost savings of that oil change. And on top of that the MPGs went down. I should have listened to some advise here on BITOG forum of not to use this oil. Those labels must mean something. Well, installing running boards is going to cost a few hundred dollars. But them I got into thinking, if a gas truck oil, turned my RAV4 into a pickup truck, maybe a Hybrid oil will turn it back to its original form. I saw Pennzoil has a hybrid oil, you can get on Amazon for https://www.amazon.com/Pennzoil-550053456-Hybrid-Synthetic-0W-16/dp/B07XPWDP1M, six pack for $58.69. But it is 0w16, but the RAV4 calls for 0w20. I saw Valvoline released a Hybrid oil in 0w20 form, but don't see any for sale yet. So I may have wait for that. What do you think? If it changed that fast, maybe the engine could handle the 0w16 till it changes, then I can change it to TGMO 0w20 or Mobil 1 0w20. This would much cheaper than running boards for sure.