A4 (B5 Platform) Discussion Discussion forum for the B5 Audi A4 produced from 1995-2001 B5 FAQ

Just got my KO4 kit What weight of oil should I use?

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Old Nov 13, 2001 | 03:27 PM
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Just got my KO4 kit What weight of oil should I use?
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Old Nov 13, 2001 | 03:28 PM
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hmmmmmmm - odd combo of forum name and hardware.
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Old Nov 13, 2001 | 03:34 PM
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Maybe he's a mortgage broker.
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Old Nov 13, 2001 | 04:02 PM
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Default I think most recommend a slightly thicker weights

I've seen some running 10/30 during the winter, and as high as 10/50 during the summer.
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Old Nov 13, 2001 | 09:28 PM
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AWE recommends 15W-50 I believe
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Old Nov 14, 2001 | 06:36 AM
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Why would 0-30 or 5-30 be OK for a chipped K03 and not for a K04?
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Old Nov 14, 2001 | 07:20 AM
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Default K04 runs a bit hotter than K03

Thus, the requirement for a slightly thicker oil.
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Old Nov 14, 2001 | 07:28 AM
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That's not true. Asked to make the same boost, a KO3 will run hotter.
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Old Nov 14, 2001 | 07:38 AM
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Default At the same boost, I'd agree, but doesn't the K04 push more boost?

That's the reason I'd expect it to require thicker weight oil. More boost means more heat, which requires thicker oil.
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Old Nov 14, 2001 | 07:55 AM
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Default My point was, asked to perform the same amount of work, a KO4 will run cooler cause it's more effic.

So therefore, a KO4 actually runs cooler than a KO3, ceteris paribus.
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