Phil H
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I recently thought I'd bought 'Shell Helix Ultra' when Euro Car Parts had a deal on, but when Emblem saw it they pointed out that it's actually labelled as 'Shell Helix Ultra I' which I hadn't realised. A quick call to Shell revealed that although both oils are fully compatible and the additives are the same in each case, the 'I' version is based on a slightly lower spec of the base oil.
The 'I' version is now parked until I can delve a bit deeper, but does this ring any bells with anyone?
PH
The 'I' version is now parked until I can delve a bit deeper, but does this ring any bells with anyone?
PH