Originally posted by Greg Roles
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PD TDI and CR TDI engines require either 505.01 or 506.01, depending on the vehicle and service regime.
507.00 is required for any TDI engine with a DPF, as 507.00 is a reduced-SAPS lubricant (it is not an ash-free lubricant).
507.00 also supersedes all previous oil standards, so it can be used where 505.00, 505.01 or 506.01 is specified (except for certain R5 TDI and V10 TDI engines).
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Like the majority of Volkswagen's oil standards, 504.00/507.00 is a dual specification, which consists of a petrol spec (504.00) and a diesel spec (507.00) and is only allowed to be released onto the market as a dual-rated lubricant. VW won't approve any product unless it meets both specs.
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