So, this is not about my 5th Gen T4R, but my wife's Tundra. I do my own oil changes, but she likes to have the dealer perform this maintenance task (maybe she doesn't trust me...). I had to use her truck to tow a skid steer for some landscaping work. When I was unhooking the trailer I noticed a small puddle of oil under her truck. She had just had the oil changed. We called the dealer and they had her bring it right down. It ended up being a cracked filter housing, which they said was caused by over tightening the bolt. They fixed it for free (which I wouldn't accept anything less) and when she came back she said they didn't give her any paperwork. Hmmm, wonder why? They messed up and don't want any "record" of their screw up. I suppose it is not surprising. Buyer beware!