Maintenance question

• The manual says to <B>inspect</B> the drive belt at 37.5K miles. What about actually replacing it?
  Should it really only be replaced if it looks like it is starting to wear?
• It says to replace the rear differential oil every 30K miles if operated under towing/dusty etc. conditions (all which do not apply). So, is their recommendation to never replace this oil otherwise?

• Therere 2 drive belts. Its hard to tell you should replace them at this point. Inspection should be the best way to handle this, but there was a report recently on a 60K-mile CX-5 that the serpentine drive belt broke after the inspection by a shop who stated the belit is fine. Make sure to inspect belt tensioner too as it may leak.
• It wont hurt to replace BOTH front transfer case AND rear differential gear lubricant at this point, especially it has been reported several times Mazda has under-filled rear differential gear lube. Here is an excellent write-up, Rear Diff and Transfer Case Fluid Change: tools parts and links, if you want to DIY. Id use Mazda Long Life Hypoid Gear Oil SG-1 instead of generic SAE 80W-90 gear lube.

Anchorman said:

Regarding point 1, the attached might be of help. For point 2, the answer is technically yes but we did debate it a while back and I think the majority said they would change it at some stage. I personally would at your mileage.

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