Mobil Delvac Legend 15W-40 Heavy Duty

MobilMobil Delvac Legend linecommercial vehicles15W-40

Semi-synthetic full-SAPS 15W-40 for diesel trucks and off-road equipment, rated API CH-4, approved to MTU Oil Category 2 and DTFR 15B110.

Classification
Product line Mobil Delvac Legend 6 oils
SAE viscosity 15W-40What SAE means
Base oil semi-synthetic
Intended use commercial vehicles
API class What API means
ACEA class What ACEA means
Approvals
Manufacturer approvals What an approval means
Meets the requirements of
Typical properties
Viscosity at 40 °C 116 mm²/s
Viscosity at 100 °C 15.2 mm²/s
Viscosity index 137
Pour point -33 °C
Flash point 233 °C
Base number (TBN) 8 mg KOH/g
Sulphated ash 1.1 %
Density 869 kg/m³

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

Description

Mobil Delvac Legend 15W-40 Heavy Duty is a semi-synthetic, full-ash entry-level oil in the Mobil Delvac Legend range for naturally aspirated and turbocharged diesels in trucks and off-road equipment.

It holds official MTU Oil Category 2 and DTFR 15B110 approvals and is rated API CH-4 and SJ. ExxonMobil also recommends it where the earlier ACEA E3 and B2 or API CG-4, CF-4, CF and SH levels are specified. It meets the requirements of Mack EO-M, MAN M 3275-1, Renault Trucks RD, Renault Trucks RD-2, Renault Trucks RLD and Volvo VDS-2 without formal approval.

Typical figures: 15.2 mm²/s at 100 °C, viscosity index 137, base number 8 mg KOH/g, sulphated ash 1.1 %, pour point -33 °C.

Application

Naturally aspirated and turbocharged diesel engines in European, Japanese and American trucks and off-road equipment, in line with the owner's manual.

Worth knowing

Of the 15W-40 oils from this brand in the catalogue, only this one holds both approvals, MTU Oil Category 2 and DTFR 15B110. Mobil Delvac Modern 15W-40 Super Defense V4 is also approved for DTFR 15B110, while MTU Oil Category 2 is listed there only as a requirement it meets; on the other hand, it has the Volvo VDS-3, Mack EO-N and Renault Trucks RLD-2 approvals and the ACEA E7 class, which this oil lacks. The 10-2026 data sheet for Mobil Delvac Super 1400 15W-40 lists neither MTU Oil Category 2 nor DTFR 15B110.

It is Super 1400 15W-40 that the Mobil Delvac renaming list gives as the previous name of this oil, yet the data sheets are not identical: Super 1400 also lacks Mack EO-M and Renault Trucks RLD, its base number is 9.2 mg KOH/g against 8, and its viscosity at 100 °C is 14.6 mm²/s against 15.2. Why a truck code is worth seeing in a data sheet specifically as an approval, and what the letter B in DTFR means, is taken up in the article on oil for a truck or bus.

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

Sources

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  • Mobil Delvac Modern 15W-40 Super Defense V4

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Other 15W-40 oils

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Oils with the same approvals

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    • API CI-4
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    • Volvo VDS-3
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    • API CI-4