Next up is the 2007 Lexus RX350 for known work of: oil change with new drain plug gasket, air filter, cabin air filter, clean battery cable ends, clean throttle body, pressure test cooling system because it was slightly low and top off coolant. I looked thru his supplied paperwork and never saw spark plugs changed. The iridium plugs in it are supposed to be good for 10 years or 100k to 120k miles. It has just over 120k miles on it. The fuel filter is in the tank with the pump. The wiper cowling has to be completely removed to gain access to remove the upper plenum to get to rear spark plugs. I am going to remove an easy coil and plug to inspect and did find out that if the plugs are original, they will have a mark on the tip where the coil plugs on. The vehicle came from the dad's brother and then the college girl daughter has been the second owner. No where do I see plugs changed. It gonna likely need the plugs, coil boots and springs-two designs on those boots, tube seals, plenum seals and throttle body seal. I looked it all up and priced with my 10% military discount at AZ or with 5% discount at RA. Luckily the NGK and Fel-Pro parts I like are at both places. I will get the vehicle July 4th and at least pull the plug then to inspect. I already have all the known needs parts here. She is out of school so I can do the known stuff and then order in the other parts and do the other work later. The cowling removal does not look too bad. I am going to give him the option of doing the coils too, in case they go bad later and have to pull plenum again. I think it will be decided as to whether she is keeping the vehicle. An 07 with 120k miles is pretty low and is in great shape. My labor for that will likely be close to 3+ hours. I hope to shoot some pics of what I find. The battery cable end corrosion is pretty bad.