I am switching from Mobil after 30k kms's on my Honda Accord 4cyl. I like the oil but find it makes the engione overly noisy compared to even a Dino oil like Castrol GTX. I am looking for some advice on which oil to use next? I have access to Esso XD-3 Ow30, Pennzoil, Valvoline, Red Line, GC, Quaker State and Amsoil 2000 series (all synthetics). The Red Line and Amsoil are signifigantly more expensive than the others but I am willing to use them if they are worth the extra price. What oil would you use from the above list? The oil will be run for 10k kms mostly on highway. Thx in advance for the help.