Is there a shelf life on lubricants?
Motul is certified to ISO 9001. According to our quality procedure, Motul products are guaranteed for two years after their production date. To ensure the validity of this guarantee, a reference sample of each production batch is kept systematically and checked on a scheduled basis.
Is there a difference between motorcycle oil and Automotive oil?
JASO T904 tests have been performed on the 300V Factory Line range (competition range for motorcycles), thereby guaranteeing that these lubricants do not perturb the operation of wet clutches.
In cars, the lubrication system is specific for gearboxes or clutch boxes, which are not lubricated at the same time as the engine. Friction modifiers can be used to reduce friction in the engine and thus increase its performance.
Motul therefore recommends the use of a lubricant suitable for the vehicle and mechanical part to be lubricated. You should always read your maintenance manual when choosing an oil.
What is the difference between synthetic lubricant and mineral lubricant?
A lubricant is said to be 'mineral' when it is based on refined crude oil. Synthetic lubricants use bases from chemical reactions between various components.
The process for obtaining a synthetic lubricant, compared with that for obtaining a mineral oil, is more complex and therefore more costly. Nevertheless, synthetic products have superior properties such as resistance to oxidation, allowing them to be used in very severe temperature conditions and/or with a longer period between oil changes.
Semi-synthetic oils are obtained by carefully mixing a mineral base and a synthetic base. This produces, at a reasonable cost, properties that are superior to mineral oils since these oils retain the high performance characteristics of the synthetic base.
What does Technosynthese mean?
Nowadays, the terms 'synthetic', 'semi-synthetic', and 'synthetic base', are overused and confusing. It is not enough just to add a few percent of PAOs (poly-alpha-olefins) to claim to rival the performances of oils using Motul synthesic techniques.
All these techniques using synthetic products have been developed for over 50 years by Motul, which fully masters them. They are now grouped under the generic name 'TECHNOSYNTHESE', a registered trademark.
On packaging, what does 15W-40, 5W-4, etc. mean?
These are SAE (Society of Automotive Engineers) viscosity grades that class 4-stroke engine oils in relation to their hot and cold viscosity characteristics. These grades are defined as follows:
• A cold or winter grade, followed by the letter W, 15W for instance.
• A hot or summer grade. This figure comes after the winter grade: 40 for instance.
The smaller the winter grade number (0W, 5W, 10W, 15W, 20W, 25W), the more the oil remains fluid at negative temperatures, and therefore the easier it is to start your engine in very cold weather.
The higher the summer grade number (20, 30, 40, 50, 60), the more the oil remains viscous at high temperatures (100°C), and therefore the more protection it provides to the engine during strenuous use.
Present-day engines are generally designed to operate with a hot oil viscosity of SAE 40. In winter, in temperate countries, a cold grade of SAE 15W is ample for easy starting. An SAE 15W-40 oil is therefore suitable for temperatures ranging from
-10°C to +40°C.
You should refer to the OEM's exact recommendations when choosing your vehicle lubricant
Until now, I have used a competitor's oil in my 4-stroke engine vehicle. Can I use Motul without damaging my engine?
4-stroke engine oils are compatible and miscible.
You can therefore safely use a quality Motul lubricant in your vehicle from now on.