77 Lubricants V-Twin Motorcycle Oil SYN 20W-50

Worth knowing

The data sheet mentions Harley-Davidson only as an example of air-cooled engines with high temperatures; it does not give the HD 360 rating that the brand’s service documentation specifies for its 20W50 oils. According to the data sheet, the oil “exceeds” the requirements of API SN and JASO MA/MA2, but the document prints no JASO code: look for it in the frame on the can and check it in the register, as the article on reading JASO on a motorcycle oil can explains.

The brand’s only other motorcycle 20W-50 in the catalogue is the mineral Motorcycle Oil 4T 20W-50: it has JASO MA2 without a separate MA entry, but that gives it no advantage over the V-Twin, since MA2 already includes MA. The V-Twin’s own figures are more striking. Its 19.9 mm²/s at 100 °C tops every other 77 Lubricants 20W-50 (the nearest is 18.9), and CCS is 4,700 mPa·s at -15 °C against a 20W limit of 9,500. The pour point of -33 °C does not set an operating limit: one Harley-Davidson service manual recommends its own 20W50 oils only at air temperatures above 4 °C.