My new L is ready for 1st oil change. I wanted to run Mobil-1, although, having problem locating SAE 5W-20, recommended by Ford.

Does Mobil-1 make 5W-20? If not, what is best to run for Southern Climate?

 

Bill, I'm in the same boat. New L, and went to do an oil change but couldn't find 5-20 in Mobil 1. Had to use another brand of synthetic, I think it was Castrol.

 

Mobil 1 makes a 0w-20 syn. Get it at Wally world, Autozone or Pepboys...Pepboys has a cool cars calender sponsored by M.A.D.D. for 1 dollar that has a half price coupon in it...Buy 3 quarts get 3 free... Not all Walmarts or Autozones carry the 0w-20 though..

 

Opinions on this subject will very GREATLY.

My opinion (as an automotive OEM engineer who worked on the modular motors ) would be to just use the motorcraft 5w-20 up to about the 3000-5000 mile area. Then switch to mobil 1 5w-30.

Rich

 

i run 10w30 mobil 1 in houston

 

I run mobil 0w20 in my L 18,xxx trouble free miles17,xxx of em modded.

 

Royal Purple 5w-30 since I got the truck. No Problems.

 

You could use any viscosity (synthetic) you want (not 60 weight petroleum racing oil), and between two separate engines, if oil was changed frequently enough, you probably couldn't tell the difference between both engines if taken apart.

Bottom line, you could run any viscosity (synthetic). I believe Ford's rating is in case you drive in freezing climates, because normal petroleum oil seriously thickens in the cold. None of the synthetics have that problem.

 

We have freezing climates around here...

 

Or, just continue to use the Motorcraft oil (for the life of the truck). It's not a bad oil

Steve

 

It's not a bad oil, but its just a blend. From what I have read, blends are barely better than a conventional oil. I was not convinced until I changed over to synthetic last year. I used to get a couple of small clicks until the truck would build oil pressure since I only drive the truck 2 or 3 times a month. With synthetic, it disappeared completely.

Synthetic seems to stick to the engine parts longer than the blends or conventionals in my experience.

 

OK! I finally got the scoop!
Went to PepBoys today and picked up the calendar recommended by JeffsLightning...Thanks Jeff for the coupons!

I read the label on Mobil-1 SAE 0W-20 and it states right on the label that it meets manufactures 5W-20 specs and is formulated especially for Ford and Honda 5W-20 requirements!

SOOOoooooooo, thats the way I will go!
Thanks to all for your input and support!

PS.. picked up my Bassani Catback System today and anxious to get it installed! I see it still comes with the flat type clamps!

 

55k on a 99L Mobil 1 5w-30...no problems yet.

360k on a 88 Bonneville with Mobil 1 5w-30...no problems yet.

 

I have a JDM built long block i believe they want 5-20 or 0-20 in thier engines i been told thicker oil is not the answer

 

Does anyone use Mobil 1 0w-40?




FF