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Thread: Mk5 Servicing, what to use??

  
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    Mk5 Servicing, what to use??

    hi i am wanting to service my 1.8 sri, and i am wanting to upgrade the oil and spark plugs. in you opinions which is the best for a smoother more responsive engine??

    i was thinking perhaps castrol magntex for oil but i have no idea on the sparks?

    thanks

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    I have a Mk5 1.8 SRI too. I have just changed my spark plugs to the NGK ZFR5F-11 (£16.99 in Halfords). I have always used Magnatec in the past on my Escort, but haven't changed the oil on my Astra yet. Vauxhall recommends 5W-30, and I couldn't find Magnatec like that, the only Castrol I could find like that was Castrol Edge, which says it is for modern VW and Audi engines, and it was £45 a bottle, so I left it for the time being. I also read that the difference between 5W-30 and 10W-30 is negligible, so I might just go for the normal Magnatec.

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    vauxhalls own plugs are just as good as any and made by Bosch, so are good quality. as for oil, vauxhall do recommend 5w/30 in most their engines now, supposed to be extra cat friendly and offer more MPG, but i do not like it because '30' spec oils are just too thin when used in engines with wear and the engine ends up burning this stuff off. much better to go for a good quality 5w/40 which has very good cold flow characteristics and a good lubricating top end value

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    cheers for that response, i used magnetic in my old car and must admit it did sound alot smoother so think i will use that again. am still confused on sparks though, some people have said iriduim and others bosch super four. with the super four though it can mess up the coil pack on some cars so dont know.

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    i personally hate bosch super fours, they are a fragile plug which have been known to loose electrodes during running. irridiums are expensive plugs that offer little or no extra performance, although some folk with turbo's use them for durability. if you get a good standard plug in a well maintained engine, it will do the job perfectly as well as any other. vauxhalls own plugs are the best i have ever used and my second choice would be denso's standard plug.

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