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Posted on Jun 14, 2009
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Which Mazda diesel engine do I have? RF, RF-CX or RF-N

I have a Mazda 626 Diesel with a Comprex Wave supercharger.
I have a Green Cover, Mazda 626 Diesel, workshop Manual suppliment which covers RF 22.7:1 compression ratio. This is the model prior to mine (I am told). I think (but am not sure) I have the RF-CX 21.1:1 compression ratio. The RF-N is 22.7:1 compression ratio. The three engines are different as the inlet or exhaust or both valves have different timing settings.
I too am trying to find the correct supplement for my engine.
fitberg

  • berg76 Jun 14, 2009

    Thanks alicantecoli,
    Tried that. The wagon is a 1992 model Imported 1997.
    That is all I got apart from the Vin No. and Engine No. The engine is not original.
    berg76

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The engine is a RF- CX the CX denotes comprex pressure wave supercgarger

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  • Mazda Master 22,516 Answers
  • Posted on Jun 14, 2009
Colin Stickland
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Look on the cars papers and it should tell you engine type

  • Colin Stickland
    Colin Stickland Jun 14, 2009

    dont know enough about mazada engine types to answer your question,but iam intrigued as to what additives you are trying to add??

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the NON_GRAND VITARA is not here in 2005 sorry.
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run the tests, on the system.
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quote:
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