I have a 2005 4x4 manual Tacoma, 2.7L
I use Mobil1 synthetic red every oil change, so every 5k on the dot I squirt it in the front & rear drive lines (propeller shafts)all the points get the same grease. I have 43k on the truck, it just got 25mpg on my last out of town trip SO I'm thinking the...