The updated 2008 Audi A4 introduced a selection of new engines, the most popular of which were 2.0-litre TDI turbo-diesel and 1.8-litre TFSI turbo-petrol engines. Castrol points out that every engine in the current generation Audi A4 was designed to run on fully-synthetic, low viscosity 5W-30 engine oil.
It’s important that vehicle technicians top-up these vehicles with the correct oil formulation. Using anything other than the recommended fully-synthetic 5W-30 formulation – including higher viscosity oils, such as 5W-40 and 10W-40, which lack the relevant Volkswagen Group 504 00 / 507 00 approvals – will invalidate the manufacturer warranty instantly and may reduce the efficiency, performance and longevity of the engine.
The service intervals for the current Audi A4 are also variable, up to a maximum 19,000 miles in between oil changes – more than most motorists drive in a year. Workshops could consider offering customers a one-litre bottle of 5W-30 oil in case the motorist needs to top-up their car’s engine oil between visits to the workshop. This can also help customer satisfaction and retention, as the workshop can demonstrate that they have their customers’ best interests at heart.