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Author Topic: 5w40 or 5w30?  (Read 57613 times)

Offline chopper

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5w40 or 5w30?
« on: May 23, 2012, 08:23:54 pm »
running 350bhp ed30 and oil levels are running low, and i normally top up with 5w30. opieoils recommended 5w40 instead. anyone else shed some light on which is best?
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Offline B1NCC 1.8T

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Re: 5w40 or 5w30?
« Reply #1 on: May 23, 2012, 08:27:44 pm »
5w30 is what VW recommend mate.
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Offline Luka

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Re: 5w40 or 5w30?
« Reply #2 on: May 23, 2012, 08:38:37 pm »
I believe greater power MK5s should run a more viscous oil to cope better with hotter engine temperatures?

AFAIK.
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Offline Kregiel

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Re: 5w40 or 5w30?
« Reply #3 on: May 23, 2012, 10:07:34 pm »
5w 30 and Castrol edge only in my view

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Offline stealthwolf

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Re: 5w40 or 5w30?
« Reply #4 on: May 23, 2012, 10:11:25 pm »
5W-30 in a standard engine. Most on here who are modded also use 5W-30 but there's a growing consensus that 5W-40 is better for a modded engine as it tends to run hotter.
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Offline E30Dom

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Re: 5w40 or 5w30?
« Reply #5 on: May 23, 2012, 10:24:52 pm »
I echo above... but run 5w-30 still... :laugh:
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Offline chopper

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Re: 5w40 or 5w30?
« Reply #6 on: May 23, 2012, 11:47:39 pm »
ill probably run 5w30 this time, but 5w40 shouldnt cause any issues if i run it next time?
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Offline rich83

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Re: 5w40 or 5w30?
« Reply #7 on: May 24, 2012, 12:04:24 am »
5w40. The oil will keep its viscosity at high temps better :-)
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Offline gazon69

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Re: 5w40 or 5w30?
« Reply #8 on: May 24, 2012, 07:44:58 am »
Quote from: richwig83 on May 24, 2012, 12:04:24 am
5w40. The oil will keep its viscosity at high temps better :-)
All the way. Did mine last week with castrol edge. They had an offer on at halfrauds :happy2:
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Offline Viking

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Re: 5w40 or 5w30?
« Reply #9 on: May 24, 2012, 08:45:03 am »
Personally I'd use a better oil than Castrol. Mobil would be my choice.
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Offline gazon69

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Re: 5w40 or 5w30?
« Reply #10 on: May 24, 2012, 09:06:39 am »
Not really that bothered tbh as i change it every 4k anyways. :happy2:
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Offline ROH ECHT

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Re: 5w40 or 5w30?
« Reply #11 on: May 24, 2012, 09:09:24 am »
Here in the states the recommended grade is 5W40. Going to do a change this weekend with Castrol SPT synt. and installing a drain valve as well. Drains will just be a flip of a switch from now on.
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Offline Kregiel

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Re: 5w40 or 5w30?
« Reply #12 on: May 24, 2012, 09:24:28 am »
Quote from: Viking on May 24, 2012, 08:45:03 am
Personally I'd use a better oil than Castrol. Mobil would be my choice.

Castrol Edge 5w30 is far superior for TFSI engine then any Mobil oil. In fact don't think any Mobil is approved for VW TFSI engines
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Offline Tfsi_Mike

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Re: 5w40 or 5w30?
« Reply #13 on: May 24, 2012, 09:28:01 am »
Quote from: ROH ECHT on May 24, 2012, 09:09:24 am
Here in the states the recommended grade is 5W40. Going to do a change this weekend with Castrol SPT synt. and installing a drain valve as well. Drains will just be a flip of a switch from now on.

Drain valve?  :popcornsoda:
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Offline james

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Re: 5w40 or 5w30?
« Reply #14 on: May 24, 2012, 09:39:04 am »
Quote from: Tfsi_Mike on May 24, 2012, 09:28:01 am
Quote from: ROH ECHT on May 24, 2012, 09:09:24 am
Here in the states the recommended grade is 5W40. Going to do a change this weekend with Castrol SPT synt. and installing a drain valve as well. Drains will just be a flip of a switch from now on.

Drain valve?  :popcornsoda:

it is the oil slick button next to EPS.  :happy2:
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