since im probably the only NSX owner on here that works in the oil change industry, i figured this would be the best place to start posting.
the filter for the NSX is not NSX specific, its also used on the Legend. but thats the only two cars that fit the application.
a new crush washer is recommended at each oil change simply because once the washer is torqued down on, it crushes to fit the contour of the pan and the plug, and the chances of it matching up again when you reinstall the plug are slim. it may not leak noticibly or at all, but eventually it'll become a risk.
the fill is listed as 5.3 quarts, although putting 5.2 definitely wont hurt anything. just make sure the oil level stays between the min and max points on your dipstick.
a few notes about synthetic vs. conventional:
you can put synthetic in a brand new honda/acura, as well as nearly every new car on market. this is because engines undergo a break-in period at the factory, when they bench test the engine. as a matter of fact, mobil 1 synthetic is the factory fill on the dodge viper, chevy corvette, and many cadillacs. so the rule about allowing piston rings to seat before switching to synthetic doesnt apply by the time you buy your car.
a lot of people blame newfound oil leaks on switching to synthetic, but the truth of the matter is that synthetic oil at any given temperature is more fluid than conventional oil, and will make a certain sized pinhole look a lot worse than if the engine was running conventional oil. another thing to consider is the detergant qualities of synthetic oil. it cleans the engine a LOT better, so if you change over to synthetic on an engine that has a few missed oil changes or is not well taken care of, it may start to burn more oil or leak more oil as the synthetic is doing a superior job of cleaning the piston rings and areas around the engine seals.
if you have been going with conventional for a long time, and your engine has high mileage, you might not want to put synthetic in it for the above named reasons. but if you have a well taken care of vehicle, and dont lose any oil between oil changes, by all means go for synthetic.
if you have been using synthetic but want to save a buck and go back to conventional, it wont hurt anything. but keep in mind that it doesnt clean as well, will break down faster under any condition, and does not last nearly as long for oil change intervals. dont expect the same performance or mileage out of it as you were getting with synthetic.
honestly, the most important thing about oil is using the proper grade. an old school rule used to be to use thinner oil in the winter and thicker oil in the summer, but with such advanced multi-grade oils, its seldom necessary. just go with the manufacturers recommendation (10w30 on my 1992 NSX, im not sure if the later models use 5w30), as VTEC will be affected by oil that is too thick or too thin.
wow. that turned out to be long winded.
