77 Lubricants Motorcycle Oil SYN 4T 10W-40

77 Lubricants77 Lubricants Motorcycle Oil SYN 4T linemotorcycles10W-40

Synthetic 10W-40 oil on hydrocracked base oils for four-stroke motorcycles: JASO MA, JASO MA2, API SN.

Classification
Product line 77 Lubricants Motorcycle Oil SYN 4T 3 oils
SAE viscosity 10W-40What SAE means
Base oil synthetic
Intended use motorcycles
API class What API means
JASO class
Typical properties
Viscosity at 40 °C 96.6 mm²/s
Viscosity at 100 °C 14.6 mm²/s
Viscosity index 157
Pour point -39 °C
Flash point >201 °C
Base number (TBN) 8.4 mg KOH/g
Density 860 kg/m³

Description

77 Lubricants Motorcycle Oil SYN 4T 10W-40 is a synthetic oil for modern air- or liquid-cooled four-stroke motorcycles. It is made from hydrocracked base oils, which the maker classes as synthetic technology, and it lubricates the engine, gearbox and wet clutch.

The oil is rated JASO MA, JASO MA2 and API SN; the data sheet lists no motorcycle manufacturer approvals.

Typical figures: kinematic viscosity 14.6 mm²/s at 100 °C and 96.6 mm²/s at 40 °C, viscosity index 157, pour point -39 °C, base number 8.4 mg KOH/g.

Application

Modern air- or liquid-cooled four-stroke motorcycles; the oil lubricates the engine, gearbox and wet clutch.

Worth knowing

The car oil 77 Lubricants Motor Oil Synthetic 10W-40 has a similar name and the same viscosity grade, but the catalogue lists it with API SP and ACEA A3/B4 and no JASO class at all, so for a motorcycle with a wet clutch the two cans are not interchangeable. The brand has two motorcycle 10W-40 oils in the catalogue: this one and Motorcycle Oil 4T 10W-40, both with API SN and JASO MA2.

This pair shows clearly that pour point and cold starting describe different things. SYN 4T has a pour point of -39 °C, three degrees lower than 4T 10W-40, but its CCS cranking viscosity at -25 °C is higher: 5,400 mPa·s against 4,500. Neither crosses the 7,000 mPa·s limit that SAE J300 sets for the 10W grade, and the article on the oil data sheet explains why pour point is no guide to starting in frost.

Data current as of Check the label and the current product data sheet before you buy.

Sources

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