what is difference between engine oil Liqui Moly Synthoil High Tech 5W-40, 5l and engine oil Liqui Moly Top Tec 4100 5W-40, 5l or other mark better can you give me a tip? have car seat ibiza 1.2 year of construction 2003 petrol 64 ps doesn’t know exactly which oil I should buy bought car only last week XD