Inside Line: Comma


Engine Oil

For this particularly vehicle, Renault list a number of specifications for engine oil which should be covered by either Syner-G 5W40 or Ecoren 5W30. With a number of differing specifications depending on year and engine size and type.

Most engines in this Megane have quite small sumps and with service intervals varying up to 18000 miles, oil top up between services can be critical. Supplying the customer with a top up pack and reminding them that they should be checking the engine oil regularly (see vehicle handbook for guidance) might also be prudent here particularly if you have noticed that the oil needed topping up when it was brought in. A quick check before you change might be a good way of reinforcing the importance of top up to the customer. Combined with longer service intervals and the increased use of sensitive components like turbochargers, a smaller sump size makes checking your oil more critical than ever before.

Brake Fluid

Renault use one or two specifications for brake fluid for this era of Megane. Most people don’t think of brake fluid as a service item however, in contrast with many other manufacturers (at usually 24 months), Renault specify a change interval of 48 months for this Megane.

Brake fluid degrades over time by absorbing water from the atmosphere (which lowers its boiling point. Boiling point is a critical factor in brake fluid performance because of the amount of heat generated during braking. If the boiling point of the fluid is too low then continuous or hard braking may cause the brake fluid to vaporise which in turn can result in a loss of hydraulic pressure within the system. The message here is that brake fluid is a safety critical item so check and change when specified – don’t assume that it will just be OK.

Power Steering Fluid

This series of Megane is fitted with a purely electrical power steering system so no power steering fluid is required.


Xstream G30 is the recommended product for this Megane, as it is for all recent Renault vehicles. Note that Renault use their own yellow coloured coolant – this is an OAT based product (like Xstream G30) and so mixing the two may produce an unusual colour – this should not affect the performance of the coolant as the chemistry of them will be very similar.


For this particular Megane, Renault use a range of transmissions that includes mostly manuals but also some automatic alternatives. As well as different fluid requirements, change intervals and capacities will vary depending on the type of transmission so we would advise you to consult the handbook to ensure that you get the right product for the vehicle you are servicing.

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