Straight 30 weight Chevron. Ariens lawnmower. 5 HP engine. No filter. Oil change once a year.

 

1998 5.4 Supercab 4WD-Mobil One 5W-30

2002 4.6 EB Explorer-Motorcraft 5W-20

These are the weights recommended in the owner's manual.

 

Amsoil 10W-30

 

So far the consensus is:

2 - 5W-20 (11%)
14 - 5W-30 (78%)
1 - 10W-30 (5%)
1 - 0W-30 (5%)

Only 5W-30 in my 01 4.2, and with these results I feel better that I am using the correct oil...

 

Penzoil 5w-30 here.

-Flea

 

This is great! Thanks for your imput everyone. Keep it comming.

 

97 "plain jane" xl, with 160,000 on it so far. 10/30 because "them rings ain't what they used to be"

 

'01 4.2 Amsoil 5W-20

 

Y2K F150 ORP - Havoline 5W30
Wife's car (was 97 Escort, then a 96 Taurus, now she's driving my truck - damn deer) - Havoline 5W30

 

Amsoil Series 2000 0w30, in a 97 4.6l.

 

Also, Amsoil Series 2000 0W-30, '97 4.6

 

99 5.4 5w30 mobil 1 syn

 

Mobil 1 15-50 w/ Purolator Pure One filter in both my 2000 F150 5.4 and my 89 Thunderbird rainy day and winter ride. I know I am giving up mileage, but I think I make it up in reduced wear and increased bearing life. Every time we have a bearing problem at work, we put 20-50 in it until the problem is solved. The we go back to 5-20 water weight oil.

 

Mobil 1 5W30 BUT, seriously considering switching back to Mobil 1 0W20 when it hit's the shelves...

Let's stirr things up...Who else is considering this for their 5W20 recommended vehicles??????????

 

0W-20 should work just fine. it's the "20" part that is most important. you really shouldn't need the 0W unless you live in a real cold climate; say occasionally -10 degrees or less. when is mobil 1 supposed to come out with this weight? i will definitely use it in the winter here in minnesota.