Ok I know this has been beat to death as far as which oil to use. I am going to switch to Mobil 1 15w-50 after reeading osme of the past posts. Every one keeps refering to Mobil 1 RED CAP. The posts I was reading through are all about 6 months or more old. So maybe things have changed at Mobil. My question to the guys running Mobil 1 is what type are you running? Mobil 1 with a RED CAP Mobil Clean 5000 as it is called now only goes up to 10w-40 The only one that comes in 15w-50 is Mobil 1 Extended Performance it has the gold cap. Is this now what every one who used to run RED cap 15w-50 is using?