Motul CLASSIC SAE 50

MotulMotul Classic linepassenger cars50 data partly verified

Mineral low-detergent SAE 50 monograde oil for the engines and gearboxes of veteran and pre-war cars.

Classification
Product line Motul Classic 7 oils
SAE viscosity 50What SAE means
Base oil mineral
Intended use passenger cars
Typical properties
Viscosity at 40 °C 256 mm²/s
Viscosity at 100 °C 21.3 mm²/s
Viscosity index 98
Pour point -18 °C
Flash point 281 °C
Base number (TBN) 1.5 mg KOH/g
Density 897 kg/m³
Pack sizes 2 L
Motul CLASSIC SAE 50

Description

Motul CLASSIC SAE 50 is a mineral, low-detergent monograde oil from the Classic line. It is intended for the petrol and diesel engines of veteran, vintage and pre-war cars, and for gearboxes of the same period where SAE 50 is specified.

The data sheet lists no classifications or car-maker approvals. According to the data sheet, the low detergency suits the paper, felt and fabric seals found in such engines, and the oil is also designed for cars that spend long periods in storage.

Typical figures: kinematic viscosity 21.3 mm²/s at 100 °C, viscosity index 98, pour point -18 °C, flash point 281 °C. Available in 2 litres.

Application

Petrol and diesel engines and gearboxes of veteran, vintage and pre-war cars.

Worth knowing

Motul publishes the data sheet for this oil under the name HISTORIC SAE 50 and addresses it to engines and gearboxes built between 1900 and 1950; among the uses it also names the engines of collectors’ motorcycles. Besides compatibility with old seals, the data sheet justifies the low detergency by the fact that such a formulation does not wash out the soot and deposits that have already settled in the lubrication system. A separate line states compatibility with brass, bronze and copper. The oil is permitted for running-in only with shortened change intervals, and in general a change at least once a year is advised.

The base number of 1.5 mg KOH/g is almost six times lower than the 8.8 of the all-season Classic 20W-50 from the same Motul Classic line, and both values were measured to ASTM D2896. What this entry shows, and why the method next to it matters, is covered in the article on the figures in an oil data sheet. A viscosity of 21.3 mm²/s at 100 °C lies near the upper limit of the SAE 50 grade, which is less than 21.9 mm²/s.

Data current as of data partly verifiedsome specifications could not be confirmed from an official sourceCheck the label and the current product data sheet before you buy.

Sources

Related articles

Other Motul oils

All 150 oils

  • Motul CLASSIC NINETIES 10W-30

    partly verified

    Semi-synthetic 10W-30 API SL engine oil for the petrol and diesel engines of youngtimers and modern classics.

    • API SL

  • Motul CLASSIC EIGHTIES 10W-40

    partly verified

    Semi-synthetic 10W-40 API SL engine oil for the four-stroke petrol and diesel engines of youngtimers and modern classics.

    • API SL

  • Motul CLASSIC 2100 15W-50

    partly verified

    Semi-synthetic multigrade 15W-50 oil rated API SH and API CF for the petrol and diesel engines of classic cars.

    • API SH
    • API CF

  • Motul CLASSIC 20W-50

    partly verified

    Mineral multigrade 20W-50 oil to API SF and CC for the petrol and diesel engines of classic cars.

    • API SF
    • API CC

Other 50 oils

  • Liqui Moly

    Liqui Moly Classic Motoroil SAE 50

    Mineral single-grade SAE 50 engine oil with minimal additives for vintage cars and motorcycles without a full-flow oil filter.

  • Eni

    AGIP Novecento 50

    Single-grade SAE 50 engine oil rated API SC for veteran-car engines, including worn ones with enlarged clearances.

    • API SC
  • 77 Lubricants

    77 Lubricants Mono Engine Oil SA 50

    Single-grade SAE 50 engine oil to API SA for engines of early design.

    • API SA