AFM. active fuel management.

 

Mobile 5000 5W 30.

 

i've always been interested in royal purple too, haven't looked for a while but if i remember right, it's kinda spendy

 

0w-30 full synthetic mobile 1 or castroil edge syntec. do to i let the three i alternate monte dads cougar when i say hay thats a nice cougar and my mustang gt modified sit. the reson why i use 0w-30 is they sit for a month or longer if i dont drive them sooner. the lighter wieght of the 0 shoots to the heads and the valves faster till it warmes up and becomes what ever weight. i know 30 is the highest but 0w30 allowes me to ensure the engine wont fail do to total dry start

 

i havent got royal perpel on a while do to not enough funds to get it once a engine goes synthetic stay with it. i know from the cougar the the cam broke when my dad used regular oil had to replace the head and gears for the timing chain and most of the moving mass

 

I was running 5W-30 conventional Valvoline but used 5W-30 Pennzoil on this last change because I got a heck of a deal on it at Pepboys after Thanksgiving. I still have a couple of vehicles running Valvoline though. I may change them over to Pennzoil also.

I'm another person that will not run Mobil 1 in my vehicles anymore. I was a huge fan back in the early 90's and ran it until the early 2000's when I started doing oil analysis on my 98 chevy truck with the 5.7L and my ex-wife's 98 Grand Prix GT with the 3800. Neither one came back with very good results over the couple of years that I did oil analysis on these two vehicles. I switched back to a conventional oil and all of my wear metals went down, engines were quieter, and used less oil.

I plan on staying with a conventional. A conventional oil in the viscosity recommended by your manufacturer will work fine

Wayne

 

Also Mobil 1 Synthetic 5@30

 

Amsoil 0W-30 100% synthetic - Signature Series ... Period.