good info up there

should i only use 5.5L instead of 6??? i always use 6, will i feel a difference or will there be any difference, what will happen if i keep on using 6??

 

The 5.5l will still be over the add mark on your dip stick and won't hurt anything at all. You will have to keep your eye on the oil level more often since you won't have so much of a "buffer" before it needs more oil but that's about it. It won't feel any different, just help with the oil being sucked up into the TB from the valve cover. Of course this is a moot point if you have the seperator mod or breather.

 

I used Mobil 1 5w-30 in my 99, and will be changing the Mustang over as soon as I can something close to the damn 5w-20 that this this needs.
I heard that Mobil is making a 0w-20 which should go on sale very soon, I think that will be as close as I can come unless I stick with the 5w-30.

 

http://www.royalpurple.com/retail/re...otoroilmps.pdf

soon as I can something close to the damn 5w-20 that this this needs

I use their #11(5w20) Racing oil.....................

Dan