Gulf is better than Motul..no matter what anyone says...they are supirior in RnD and because that's a engine tech(DTS-i in your case) specific oil you should be on the safe side with Gulf...
Reviews of Gulf engine oil
12 votes
So this time I went to my trusty bengkel and tried GULF Engine Oil. I have to say, the engine and response felt so much better than any engine oil that Ive used so far.
I use Gulf 5w30 Full Synthetic on my ecoboost. Ran full synthetic in my ST as well. Never had any issues with it.
I really love the livery, but one thing I must say, I've used Gulf Engine oil on my motorcycle and it's not that good, not as good as Motul/Shell/Liqui Moly.
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