https://www.youtube.com/watch?v=aPN6InDHE4kJapanese Automotive Standards Organization JASO certified oilwet clutch and shear stabilityMAMA1MA2Recommended oils on the ST-Owners forumShell Rotella T6 Full Synthetic 5W-40 Diesel Engine = Oil, 1 GallonChange ==meets JASO MA and MA2$23.52 at WalMart$37.99 at NAPA"Chevron Delo 400, Mobil Delvac 1300, and Shell Rotella are made from pure Group II oils""Three synthetics stand out from the rest: Mobil Delvac 1, Mobil-1 SUV and Shell Rotella T Synthetic."(Courts ruled) "the word "synthetic" was a marketing term and referred to properties, not to production methods or ingredients. Castrol continues to make SynTec out of Group III base oils, that is highly purified mineral oil with most all of the cockroach bits removed."{{#ev|youtube|aPN6InDHE4k}}
Japanese Automotive Standards Organization <abbr title="Japanese Automotive Standards Organization">JASO</abbr> certified oil
PL14610 Purolator One Oil Filter$10.44 at WalMartsynthetic 80/90 in rear differential every 10000 milesspecial requirements due to the wet clutch and shear stability because of the transmission using the same oil.
The JASO designations are
# MA
# MA1
# MA2
Linkshttp[https://www.thefairchildsst-owners.orgcom/bikesforums/ Scott Fairchilds cycle cornerhttps:threads//motorcycleinfo.calscist1300-oil-viscosity-and-brands-recommended.com149363/Recommended oils on the ST-Owners forum]:<br>'''Shell Rotella T6''' Full Synthetic 5W-40 Diesel Engine Oil, 1 Gallon* meets JASO MA and MA2* $23.52 at WalMart* $37.html Mark Lawrence founder or California Scientific (makes windshields)99 at NAPA
Quotes from Mark Lawrence:<br>
* "Chevron Delo 400, Mobil Delvac 1300, and Shell Rotella are made from pure Group II oils"
* "Three synthetics stand out from the rest: Mobil Delvac 1, Mobil-1 SUV and Shell Rotella T Synthetic."
* (Courts ruled) "the word "synthetic" was a marketing term and referred to properties, not to production methods or ingredients. Castrol continues to make SynTec out of Group III base oils, that is highly purified mineral oil with most all of the cockroach bits removed." IOW, Castrol SynTec is not "synthetic oil" in the traditional sense, but "synthetic" in the marketing sense.
=== Oil Filter ===* PL14610 Purolator One Oil Filter<br>[https://www.walmart.com/ip/Purolator-PL14610-Purolator-ONE-Advanced-Engine-Protection-Oil-Filter/465843703 $10.44 at WalMart] == Final Drive ==synthetic 80/90 every 10,000 miles. Funny that people call it the 'rear differential' when that's not what it is. It is a final drive gear housing. == Links == ; Scott Fairchilds cycle corner : http://www.thefairchilds.org/bikes/ ; Mark Lawrence : https://motorcycleinfo.calsci.com/Oil.html: founder or California Scientific (makes [https://motorcycleinfo.calsci.com/ST1300prod.html windshields]) == Also ==Lower Cowl bolthttpsbolt<br>https://www.partzilla.com/product/honda/90106-MBY-000<br>$2.49 at PartZilla5x12SCREW90106PartZilla<br>5x12<br>part number 90106-MBY-000