Different grades have slightly different viscosities and are for different applications (like racing). 5W-30 is appropriate for road use GTIs with normal service intervals
I think the Shell stuff you have will be fine. I have a Castrol bottle in case that's the same spec. Thankfully it hasn't been used yet
I think the Shell stuff you have will be fine. I have a Castrol bottle in case that's the same spec. Thankfully it hasn't been used yet
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