Anyone suggest a decent oil to help improve mpg / reduce wear

[wantmygti]

Good work Sir.

[ItsJAYKAY]

See the link for a description of the VW oil specs   http://forums.tdiclub.com/showthread.php?t=129311

This shows the 503 as being longlife oil for petrol engines under 180 bhp, then it describes that the 503.01 should be used for petrol engines over 180 bhp where long life is required.

Looking at the descriptions then 502 appears ok too? However it does not show what 504 spec oil is for. Any ideas which is the best oil then for the 2.0fsi?

[Hully]

See the link for a description of the VW oil specs   http://forums.tdiclub.com/showthread.php?t=129311

This shows the 503 as being longlife oil for petrol engines under 180 bhp, then it describes that the 503.01 should be used for petrol engines over 180 bhp where long life is required.

Looking at the descriptions then 502 appears ok too? However it does not show what 504 spec oil is for. Any ideas which is the best oil then for the 2.0fsi?

  It says that 503 is suitable for engines of more than 180 bhp, not less.

[2007GTI]

its says 504 is the right oil for 2.0 fsi turbo in the GTi owners manual.

[ItsJAYKAY]

From what I gather 504 oil is the new oil which covers non variable service and variable service, whereas 502 is just for non variable service. Therefore I beleive 502 or 504 is suitable.

However as regards longlife oil this in general I believe is only recommended for driving such as motorway / highway use, where the engine is not under extreme loads when hot / cold.

[Teutonic_Tamer]

From what I gather 504 oil is the new oil which covers non variable service and variable service,

Correct.

whereas 502 is just for non variable service.

Yup, correct again.

Therefore I beleive 502 or 504 is suitable.

You missed out 503.00, which is also suitable.

However as regards longlife oil this in general I believe is only recommended for driving such as motorway / highway use, where the engine is not under extreme loads when hot / cold.

You have that slightly confused.  You are quoting the LongLife servicing "regime".

The LongLife oil is the best possible oil available.  The 504.00 brews are considerably better that the 502.00 brew, because all VW specified LongLife oils use an additional "high temperature" test criteria.