True Ford's synthetic oil is a blend (no idea what it actually is or who makes it).

Mobil1 however isn't a blend (although I believe it used to be). Makes me wonder what chevy/dodge/porsche etc. do as they come with mobil1 in them.

 

I use Mobil 1 5w30 and a Motorcraft Oil filter, althought the new motorcraft 5w20 full synthetic seems appealing.

 

The '03 comes with Motorcraft synthetic BLEND I believe.... It is dino oil and synthetic blended.

 

I ran 5w-20 fossil till around 24000 miles then changed to Mobil 5w-30. I think it broke-in just fine, actually very well. Mine hasnt seen the strip as most on here have, but nevertheless, I feel the use of the fossil oil for a while before changing to synthetic was worth it.

 

I have not been able to find Mobil 1 5W20 in Austin. Spoke with a Mobil 1 rep at the Sema Show in Vegas a few week ago and was told that Mobil 1 5W20 was introduced at last years SEMA show and should be found a your local Walmart or parts stores.

Have any of you found it?

seniorchief

 

pep boys and sometime walmart will have mobil 0w-20 which is the equivalent/replacement to 5w-20. if you want to you can use mobil 5w-30 synthetic as the wighting characterstics in the synthetic is so close a a 5w-20 in dino form.

oh yeah, check this out. it's an independent study done aby a couple of some of the ls1 bubbas.

http://neptune.spacebears.com/cars/s.../oil-life.html

 

seniorchief,

Check out the Autozone on North Lamar, just north of Rundberg in North Austin.

They have Mobil 1 0W-20 and Mobile 1 oil filters.

I have also found the Mobile 1 before at the Wal-Mart at 620 in Round Rock, but not consistently.

--Rip

 

I have run Mobile 1 since new 500 miles to 18k and then switched to RedLine 5/30 for the last 3k miles. I have been using Purolater Pure One filters (rated best by a engineering study I read a few years ago). They flowed the best and filtered the smallest particles and had a quality construction. Only the K&N compared and it is expensive. I blew my motor up in August using Nitrous (broke 3 rods). The machine shop that took the motor apart thought the truck was new as there was 0 bearing wear. I will stick with Synthetic.

 

ok i run mobil 1 5-30, costco sells it, i was worried about the heavier viscosity but after i dynoed my truck i saw how black the oil was after only 1500 miles, so ill try mobil1 with a heavier viscosity and check out my next oil change.

 

When I ran Mobil 1 I used the 10-30

 

has anyone tried Mobil1 0w30? It is the bottle with a silver top and its says european blend on the bottle. I have the bottle here because i just put 1 quart in a go-cart.

 

Yea, In my snowblower!

 

the motorcraft oil filters are made by pureoilater so there is no difference between the two