Are these engine oils exactly the same?
Costco has this available (and is on sale) (eg first link) but am not sure if this is the same exact oil as the one that meets the Acura HTO-06 standard (see other link eg 2nd link)...
seems like the Costco one is labelled fully synthetic vs the Castrol website one that meets Acura HTO-06 spec but is labelled"advanced fully synthetic". FWIW, my 2010 RDX is the only car in the honda/acura lineup that needs to meet this Acura HTO-06 standard (based on what's written in on the owners manual and after I've research online ... *shrugs* -- worst comes to worst, i guess ill have to get Mobil 1 I guess... ) both are synthetic, and 5w-30... not sure what Acura HTO-06 and advanced fully synthetic has vs costco's fully synthetic one... Both seem to be castrol edge label as well... would buying the Costco one be incorrect as the costco website does not indicate their Castrol Edge 5w-30 meets Acura HTO-06 spec (eg the text after the picture below doesn't indicate it vs the castrol website one does)?
https://www.costco.ca/castrol-edge-spt- ... 46178.html
https://www.castrol.com/en_us/united-st ... #tab_5w-30