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Mixing Engine Oil


xrBlitz

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  • Member For: 16y 4d
  • Gender: Male
  • Location: Sydney

Hey, I have a bf2 turbro and am looking to do a service, I looked on the Castrol website and they recommend Castrol Edge 0w40, and Castrol Magnatec 10w40, I also noticed I need 6.6Lt of oil, just wondering if it would be ok to mix 5Lts Castrol Edge 0w40 fully synthetic with 1.6Lts of Castrol Magnatec semi synthetic? I like the idea of the Magnatecs added protection on start up, but I'm unsure on mixing full syn with semi syn also the different thinkness.

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  • Member For: 13y 6m 20d
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  • Location: South West QLD

No to mixing..

Edge is good..

Some people have some good to say about the Nulon 10-40 for these cars also if you're looking for something cheaper then edge.

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  • Member For: 16y 4d
  • Gender: Male
  • Location: Sydney

Awesome thanks for the replies, I was going to do the engine oil, manual trans oil, and diff oil all at once, and was going to keep to the one brand of oil like Castrol, I did think of Penrite and Nulon too but I don't know how people rate it, there websites do recommend a heap of oils too.

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  • Member For: 13y 1m 24d

Sounds like Nulon 10-40 is the way to go then.

I just got some Penrite HPR5 5-40 that was recommended by the guys at repco.

If this is no good someone please let me know.

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  • Member For: 15y 1m 3d
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  • Location: Christchurch, New Zealand

5 is not too light. 5 is in fact thicker than 40, as this is when the oil is cold, and its viscosity changes as it goes to 40 which is at operating temp.

So a 5w40 is fine a 0w40 is fine. All it means is that the starting viscosity of the oil is closer to what the engine requires at operating temp.

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