Which ink does the Canon PIXMA MX492 use?

The Canon PIXMA MX492 (inkjet, 2015) uses PG-245XL, CL-246XL, PG-243, PG-245, CL-244, CL-246.

Compatible cartridges

CartridgeColorYieldPagesOEM priceCost/page
PG-245XL black XL300 $28.00 9.3¢ OEM · AmazonCompatible
CL-246XL tri-color XL300 $30.00 10.0¢ OEM · AmazonCompatible
PG-243 black standard180 $21.00 11.7¢ OEM · AmazonCompatible
PG-245 black standard180 $20.00 11.1¢ OEM · AmazonCompatible
CL-244 tri-color standard180 $23.00 12.8¢ OEM · AmazonCompatible
CL-246 tri-color standard180 $22.00 12.2¢ OEM · AmazonCompatible

XL/high-yield cartridges usually cost more upfront but lower the cost-per-page — better if you print often.