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Discussion Starter · #1 ·
Apologies, i know there's Opies thread about oils but if im honest im struggling to understand it :confused:

But anyway my service due on my 2007 GT JTDM 1.9, last time i used Shell Helix Ultra 5W-40, and seem to be fine for the last 8-9 months, so i know i should probably just stick to it...

Shell Helix Ultra - Shell Global

But...currently halfords offering a discount on Mobil Turbo Diesel 0-40
Halfords | Mobil 1 Turbo Diesel 0W/40 5 Litres

Seems to be a top quality oil, but worried that 0w will be too thin?? Anyone used it?

Also im confused because i thought 5w-30 was always the reccomended oil, but going on the various car supply/oil company sites they seem to reccomend 5w-40?
 

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I've used Shell helix ultra on mine for the last two years. It's a very good oil. It didn't use any when we drove to Naples last summer.
 

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Discussion Starter · #5 ·
Thanks for all the replies. I've read on other posts that 10w makes the engine less smooth? Is the Valvoline any good?

No reccomendations for the Mobil then?
 
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