Oil type/viscosity 81 Spider

[loc8tor]

I have searched and searched and still am not 100% sure what I should use in the fiance's Spider. I have read that 15w40, or 10w30, or Mobil 1 5w40 is what to use. I dont want to start another thread about oil on here, just a simple answer as to what to use in this engine. Thanks

[rlux4]

I'd bet that Shell Rotella 15W/40 is the most used oil by members here, me included. Available just about everywhere, even Walmart.
Ron

[So Cal Mark]

my heart sagged a bit when I saw the title , but I'll second the 15-40 Rotella or Castrol Syntec

[brunorahl]

I'd run 20w50. The Fiat tolerances are quite loose. Synthetic would be a great idea on a fresh motor, but it tends to leak on older motor. The seals don't seem to like it once they have had conventional oil for years and years.

[engineerted]

The correct answer is, it depends on where you live and what type of driving you do.

3 votes 15-40 rotella

20w50 if you live in the hot southwest

Ted

[Mathew26]

20w50 springs and summers with 10w40 for falls and winters has never gone wrong for me.

[loc8tor]

Thanks for the input....I decided on running the 15w40 Motorcraft(since I work for Ford) synthetic blend. With a can of BG MOA for some added Zinc. It does seem to carry more oil pressure with this oil. Maybe next oil change I will try the 10w40 and just see which the engine likes better. I did notice a small oil spot under the car will check it for leaks next time I drive it to work. THANKS!