<div class="bbWrapper">Hi guys,<br />
<br />
I need some help from the oil specialist ou there <img src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f642.png" class="smilie smilie--emoji" loading="lazy" width="64" height="64" alt=":)" title="Smile :)" data-smilie="1"data-shortname=":)" /><br />
<br />
I'm planning the 40000km service to my 2008 CLK 320cdi, and I want to buy the oil to do the service.<br />
The car have Aral 5w30 used by the German MB dealer (where the car came from) and now I'm thinking to change to Castrol or Mobil 1 since I can't find Aral very easily, and now I have some questions.<br />
<br />
So I ask you guys, should I stick to the 5w30 or get something like a castrol edge sport 0w40 or mobil 1 0w40?<br />
Are these top oils so good for it's price? (I think 0w it's a bit thin oil for any engine, dispite it helps to perform...)<br />
<br />
Something like 5w40 would be great like Castrol edge turbo diesel 5w40 but it says MB229.31 and MB229.51, wich one is it?! (not at uk website)<br />
<br />
My car uses 229.51 and I will remap it after the service, so I need a very good oil, and I will ask to change the 25000km-30000km service interval to a lower one, maybe 15000 or 20000 <img src="/styles/mbclub/smilies/dk.gif" class="smilie" loading="lazy" alt=":dk:" title="Dk :dk:" data-shortname=":dk:" /><br />
<br />
Here is some info:<br />
<a href="http://www.castrol.com/castrol/sectiongenericarticle.do?categoryId=9014060&contentId=7027059" target="_blank" class="link link--external" rel="nofollow ugc noopener">Engine Oil and Lubricants Castrol UK - About Castrol Edge Car Engine Oil</a><br />
<a href="http://www.mobil-1.co.uk/cms/Products.aspx" target="_blank" class="link link--external" rel="nofollow ugc noopener">Mobil 1 UK | Products</a><br />
<br />
Thanks</div>
