Postby smj999smj » Fri Jan 25, 2019 10:42 am
Your spark plugs aren't due until 105,000 miles, so you can actually leave them alone for awhile. When you do, it's best to stick with the OE plug manufacturer: NGK. Your original plug is an NGK # 93759, which is their Laser Iridium plug. They are expensive, so an alternative is NGK # 6240, their Laser Platinum series, which was the factory plug used in 05-06. They are both 105,000 mile plugs, but the 6240 is about $7/plug cheaper and you will not notice any difference in performance.
2010 was a switch-over year for Nissan in their coolant. You may have either Nissan Green long-life coolant or Nissan Blue extended-life coolant. Nissan Green is actually Pentosin Pentafrost A2 anti-freeze and needs to be mixed 50/50 with distilled water. It's recommended replacement interval is at 90,000 miles and every 60,000 miles, thereafter. Nissan Blue is actually Pentosin Pentafrost A3 coolant and comes only as a pre-mix, meaning no water is needed to be added to what's in the bottle. It's recommended replacement interval is 105,000 miles, but it's actually good up to 135,000 miles. Typical coolant drain and refill requires two gallons of coolant.
Nissan PCV valves rarely fail, unless the vehicle was badly maintained and the engine is sludged. If it makes you feel better, you can replace it, but I usually leave it alone unless I suspect a problem. It's at the back of the passenger side valve cover and is a bit of a pain to replace. If you are going to pull the upper plenum for any reason, you might consider replacing it then because it is a little bit easier with it out of the way.
Air filter should be inspected every 30,000 miles. Depending on your driving environment, it may be fine. I usually replace mine every 45,000 miles. The cabin air filters behind the glove box are recommended to be replaced at 15,000 mile intervals, but I usually replace mine at 30,000 miles. Again, it all depends on the driving environment; driving in dusty conditions may require more frequent replacement.
The fuel filter is part of the fuel pump module and does not get service.
Nissan instructs to inspect ATF and transfer case fluid every 15,000 miles, but doesn't give replacement intervals. Same goes for diff fluids. People's recommendations here will vary and...again...driving environment plays in part. My Pathfinders drive on mostly paved roads and highways. Others may due a lot of heavy towing or drive off-road in dusty or muddy conditions that may would require more frequent servicing. So, the following is what I do for my Pathfinders, a 2006 LE and a 2008 SE, both with 4WD:
Every 60,000 miles:
Replace front and rear diff oil, using Mobil One 75W90 synthetic gear oil.
Drain and fill automatic transmission and transfer case, refill with Valvoline Maxlife Full-synthetic ATF. Replace crush washers on all drain and fill plugs.
Empty the brake master cylinder using my vacuum brake bleeder and refill with new DOT3 brake fluid. Then I bleed the brake system until I see clean fluid coming out of each line.
FYI, I also replace my serpentine drive belt and tensioner every 90,000 miles. As far as oil and filter, I replace at 7500 mile intervals, using Walmart's SuperTech Full-synthetic 5W30 oil and a genuine Nissan oil filter. If I don't have a Nissan filter available, then I'll use a Purolator Pure One filter. I'll also replace the crush washer on the drain plug. Once a year, I'll replace the three wiper blades. I rotate tires every 15,000 miles, although Nissan recommends every 7500.
Right now I have 180,000 miles on my LE and 235,000 miles on my 08 and both are still running strong. Oil reports from Blackstone Labs also show everything is looking good and the SuperTech Full-synthetic is doing a great job!