Please refer to our Car Oil section where you will be asked to input your vehicle details. Our database will then be able to find the most suitable oil for you car.

Alternatively you can contact your local store who will be able to advise you further.

We don't have a great deal of information on this engine. If the handbook allows the use of an API SE CC 20W50 then Classic 20W50 will be fine.

Halfords Classic 20W/50 is generally recommended for engines built in the 1960s and early 1970s because the specifications it meets are typical of those that would have been considered 'high performance' at the time. Having said that, if the engine in your classic Rolls-Royce has been used to operating on a more modern product then it would be better to stick with that particularly since the 15W/40 viscosity grade you mentioned is a closer match to the 20W/30 recommended by the manufacturer under normal operating conditions.

Halfords Classic 20w50 is designed specifically for older vehicles and should be fine to use in your 1955 Austin A30.

This is a 20w50 mineral oil designed specifically for classic and vintage vehicles

The Halfords Classic Oil 20w50 is only available in 5L. The Halfords classic oil is to SD specification from the 1960's so it contains no harmeful detergents etc.

Unfortunatley we are not sure what the actual requirements of this vehicle might be but the Halfords Classic 20W50 carries an API CC diesel specification which was introduced in 1961 so was "state of the art" about the same time the vehicle was made.

The Classic Car Oil is not to be used under Extreme Pressure the instuction manual is correct

Yes all our engine oils, including the Halfords Classic Oil 20w50 contain ZDDP

Yes the formulation is to API SE spec