Specifications, documentation and guidance

Approvals and performance levels for the current range, along with the documentation your workshop needs before filling.

Specification

Full specification at a glance

Physical characteristics, including kinematic viscosity, viscosity index, flash point and pour point, are published in full on each product's technical data sheet.

Property	Obsidian 5W-30 C2/C3	Obsidian Longlife 5W-30	Obsidian 0W-30 C2/C3
SAE viscosity grade	5W-30	5W-30	0W-30
Base oil	Fully synthetic	Fully synthetic	Fully synthetic
ACEA sequence	C2 / C3	C3	C2 / C3
API service category	SP	SP	SP
Ash level	Low SAPS	Low SAPS	Low SAPS
Aftertreatment	DPF and catalyst compatible	DPF and catalyst compatible	DPF and catalyst compatible
Service interval	Manufacturer's fixed schedule	Extended / variable schedule	Manufacturer's fixed schedule
Pack sizes	1L, 5L, 10L, 20L, 200L	5L, 20L, 200L	5L, 20L, 200L

Swipe the table sideways to compare all three grades.

Always confirm the grade and specification against the vehicle manufacturer's servicing schedule before use.

Documentation

Technical & safety data sheets

Technical data sheets set out the full physical characteristics and approvals for each product. Safety data sheets are supplied in line with our obligations under UK REACH and the CLP Regulation.

PDFTechnical data sheet — 5W-30 C2/C3Characteristics and approvals PDFTechnical data sheet — Longlife 5W-30Characteristics and approvals PDFTechnical data sheet — 0W-30 C2/C3Characteristics and approvals PDFSafety data sheetsComplete range, current issue PDFProduct & price listAll grades and pack sizes PDFTrade account applicationCredit and delivery terms

Technical FAQs

Frequently asked questions

What does low SAPS actually mean?

SAPS stands for sulphated ash, phosphorus and sulphur. A low SAPS oil contains reduced levels of these components, which limits the ash deposits that would otherwise block a diesel particulate filter and shorten the life of the catalyst. It is a requirement on most modern vehicles fitted with exhaust aftertreatment.

Can I use a C3 oil where the manufacturer specifies C2?

Not automatically. C2 and C3 differ in their high temperature, high shear viscosity requirements, and some engines are built around one or the other. Always check the vehicle manufacturer's servicing schedule and use the grade it specifies. Where you are unsure, contact us with the vehicle details before filling.

Is Longlife 5W-30 interchangeable with the standard 5W-30?

They are formulated for different service regimes. Longlife oils are intended for vehicles running variable or extended intervals and should not be substituted for a fixed-interval fill, or the reverse, without checking the manufacturer's requirement first.

What are your lead times and delivery terms?

Stock is held in the United Kingdom, so orders are typically despatched within a few working days. Delivery charges depend on order value, pack size and location, and are confirmed in writing on your quotation before you order.

Do you supply on credit terms?

Credit terms are available to established trade accounts, subject to references and the usual checks. New accounts ordinarily start on a pro-forma basis and move to terms once trading is established.

How should the product be stored?

Store containers upright, sealed, under cover and away from direct heat or sunlight. Keep barrels off the ground and clear of standing water to avoid contamination around the bung. Full storage and handling guidance is set out in the safety data sheet.

Ready to price it up?

Tell us the grades and volumes you turn over in a typical month and we will come back with your account pricing, usually the same working day.

Request a quotation +44 7405 568346