Which oil / what do these codes mean - A1 or A3/4?
Discussion
Asda seem to have some great prices on oil at the moment so I popped in to pick up some Castol Magnatec 5W30 yesterday but noticed there were 2 different tyres A1 or A3/4. Which one is the ideal choice for my WRX? Will be having an oil change in a month or so but at the moment, it has 5W30 in it and could do with a top up.
Its to do with what the performance of the oil actually is.
A1 Fuel economy petrol
A2 Standard performance level (now obsolete)
A3 High performance and/or extended drain
A4 Reserved for future use in certain direct injection engines
A5 Combines A1 fuel economy with A3 performance
A1 Fuel economy petrol
A2 Standard performance level (now obsolete)
A3 High performance and/or extended drain
A4 Reserved for future use in certain direct injection engines
A5 Combines A1 fuel economy with A3 performance
Edited by cheesesliceking on Monday 9th January 09:01
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