Join Date: May 2019
Location: Rancho Cucamonga, CA
Thanks for all the advice, everyone.
After some price shopping on the internet, I'm finding the that Partzilla has good prices. Free shipping isn't included until you reach $150, but shipping cost are quite reasonable. Here are some prices I found on their site:
Part Item Number Price
WASHER, DRAIN PLUG (12MM) 94109-12000 $0.79
ELEMENT, OIL FILTER 15410-KYJ-902 $6.15
GN4 10W30 (GALLON) 08C35-A131L02 $19.77
GASKET, OIL FILTER COVER 15412-KYJ-901 $3.64
BOLT, DRAIN PLUG (12MM) 90061-KYJ-900 $0.67
I also found some references on the net that indicate motor oil should have a shelf life of about 5 years under ideal conditions. I'm sure my garage is not the ideal environment, but a couple of years seems reasonable.
But this brings up more questions for me. How often should one change the oil? Is the frequency the same for the 300 vs 500? Oddly, I can't find this information in my manual.