OLF is free at my dealer (they use a dino/syn blend) as long as I own truck. They use 5w-20 weight though. Charge me $20 to rotate tires if I want it which is not bad. Also free state inspection, and free truck wash every visit. They also have an dealer "engine for life" guarantee that is a total rip-off. I figured I would pay $2,200 in extra required maintenance over Toyota manual required maint. by 120,000 miles. BS like balance tires every 5k, BG service at 15k, etc. Hey, but remember they are an auto dealer!