which oil??

[napoli101]

could anyone tell me recommended oil for 2003 f150 harley davidson? sae 5w-20 is information i have but would this be super synthetic?

[powerstroke]

napoli101 said:

could anyone tell me recommended oil for 2003 f150 harley davidson? sae 5w-20 is information i have but would this be super synthetic?

Most recomend synthetic for longer drain periods and the very thin grades for economy I think if you change it regulaly then a semi syn 5/30 will be fine
I strongly believe clean cheaper oil is better than contaninated expensive oil!!
changing gets rid of acids and moisture that soon build up in a low use engine but if its doing 100s of miles a week maybe you would get a benifit from full syn oil running hot for hours on end ..

[LuS1fer]

Use a good 5w-30. The 20 is to boost Ford's economy figures to the detriment of the engine.

[doodledoodle]

I have been using Lucas 5/20 in my mustang with as far as I can see no detrimental effects the company I have bought from www.dukeriesengineering.com also sell a Lucas fully syn 5/30 on there website so I might give that a try

[LuS1fer]

doodledoodle said:

I have been using Lucas 5/20 in my mustang with as far as I can see no detrimental effects the company I have bought from www.dukeriesengineering.com also sell a Lucas fully syn 5/30 on there website so I might give that a try

http://www.machinerylubrication.com/Read/518/motor-oils

http://www.synlube.com/sae5w-20.htm

http://www.ultimatesyntheticoil.com/articles/ford5...