77 Lubricants Engine Oil Synthetic UHPD 5W-20

77 Lubricants77 Lubricants Engine Oil UHPD linecommercial vehicles5W-20

Synthetic low-viscosity 5W-20 oil for modern long-haul truck diesels with a particulate filter, with MAN M 3977 approval.

Classification
Product line 77 Lubricants Engine Oil UHPD 4 oils
SAE viscosity 5W-20What SAE means
Base oil synthetic
Intended use commercial vehicles
Approvals
Manufacturer approvals What an approval means
Meets the requirements of
Typical properties
Viscosity at 40 °C 44.5 mm²/s
Viscosity at 100 °C 7.9 mm²/s
Viscosity index 149
Pour point -42 °C
Flash point >201 °C
Base number (TBN) 13.1 mg KOH/g
Sulphated ash 0.90 %
Density 852 kg/m³

The car maker has not officially approved the entries in the “Meets the requirements of” row.

Description

77 Lubricants Engine Oil Synthetic UHPD 5W-20 is a low-viscosity synthetic engine oil for modern low-emission diesel engines in long-haul trucks fitted with a particulate filter. The 5W-20 grade is aimed at saving fuel.

The oil holds official MAN M 3977 approval and, according to the maker, meets the requirements of Scania LDF-5. The data sheet lists no other classes or specifications.

Typical figures: viscosity 7.9 mm²/s at 100 °C and 44.5 mm²/s at 40 °C, viscosity index 149, base number 13.1 mg KOH/g, sulphated ash 0.90 %, pour point -42 °C.

Application

Modern low-emission diesel engines in long-haul trucks with a diesel particulate filter (DPF), where MAN M 3977 or Scania LDF-5 is specified.

Worth knowing

These codes give no backward compatibility: where MAN M 3677 is specified, an oil to MAN M 3977 must not be used, and Scania LDF-5 goes into an older Euro 6 engine only if the owner’s manual expressly allows it. Why such codes are not read as the next step up is explained in the article on MAN and Scania approvals. The status of the two codes differs: in the data sheet MAN M 3977 is listed as “Approved”, Scania LDF-5 as “Exceeds”. The page Scania LDF-5 shows where this second code is backed by an approval and where by a statement alone.

The neighbouring Engine Oil Synthetic UHPD 5W-30 shares no code at all with this oil, so by codes neither replaces the other. The difference shows in the figures too: 7.9 against 12.1 mm²/s at 100 °C, 44.5 against 70.3 mm²/s at 40 °C. Sulphated ash, 0.90 and 0.98 %, and base number, 13.1 and 13.2 mg KOH/g, however, are almost the same, so they do not tell these oils apart.

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

Sources

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    • MAN M 3977
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    A synthetic low-SAPS 5W-20 oil for the latest lorry diesels with exhaust after-treatment, meeting MAN M 3977 and Scania LDF-5.

    • MAN M 3977
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