ENGINE OILS LOWDOWN
Fuchs gives and insight into grade variations the industry experiences
Why are there so many unique heavy duty engine oil specifications?
Many years ago we had only a few options in the list of engine oils often with only a viscosity grade as the notable difference, such as 20W-40, 20W-50, 15W-40 or SAE 40.
Now there are so many variations it can be difficult to make the correct choice. So what has changed?
As a very general rule the updates to specifications are usually driven by gains in wear protection, emission control, fuel saving and in some cases, all of these.
Most Original Equipment Manufacturers (OEM) spend a great deal of time and effort in development which will give them a competitive edge.
As such, the work they do is rarely shared amongst their competitors. This may then lead to a requirement for a unique specification.
OEM’s may collaborate on some levels with their combined work in grades such as those listed under industry bodies such as API & ACEA. These specifications often form the backbone of their own unique requirements.
A key change in the industry which has still taken time to filter through was the addition of exhaust
after treatment systems. This usually led to the need for what has become a generic term of ‘DPFfriendly’.
As an answer to the requirement to decrease poisonous gases from the combustion process, many OEM’s incorporated EGR (exhaust gas recirculation) and variable timing to reduce the burn temperature. This had the required result of reducing the amount of poisonous gases, but in turn increased the amount of soot production. The response was to fit a DPF (diesel particulate filter).
Some chemicals used in engine oil additives burn at a temperature far higher than the DPF reaches and can then accumulate, causing blockage. The answer was to impose restrictions on SAPS (Sulphated Ash, Phosphorous, Sulphur).
This gave rise to the term “Low SAPS”.
FUCHS LUBRICANTS HEAVY DUTY DIESEL OIL RANGE
Fuchs Lubricants offers an engine oil product range which has a tiered approach to cater for all these requirements. This allows the choice of one of the higher specification products to cover all the preceding requirements, or alternatively, to select only the ones needed.
TITAN CARGO MAXX SAE 10W-40 & SAE 5W-30:
API CJ-4 / ACEA E9/E6 – these high quality products boast many OEM approvals, specifications and recommendations. These products are normally required by the latest generation of vehicles with even tighter SAPS limits. This said, it does not prevent their use in previous specifications. These products are often the lower viscosity, higher fuel saving products and for that reason alone should always be a consideration when choosing a product.
TITAN CARGO SAE 15W-40 & SAE 10W-30:
API CJ-4 / ACEA E9 – has many OEM approvals, specifications and recommendations. With the API CJ-4 came the step change to the “Low SAPS – DPF Friendly” technology. Although not merely the “next thing”, it met the new standards, while remaining backward compatible to the previous types. This product is widely used as a means to achieve all heavy duty diesel engine oil requirements in one product.
Below: Tony Swiatek is Senior Product Manager at Fuchs Lubricants