time to do her first oil change my question is shes just hit 40k miles with 1 previous owner is there any way to know if he used synthetic oil i dont wanna mess it up if hedid but imo 40k miles is not high enough mileage to start synthetic unless po already did

 

Theres no way to tell. I have 10K on my truck and its already on synthetic oil. Keep in mind that these trucks came from the factory with a synthetic blend, so its not like they had 100% dino juice in there to start with.

 

my walmart was selling a 5qt motorcraft jug of oil for 12 bucks which was a synthetic blend. At minimum, do that. Motorcraft is a good oil.

 

If you go with Motorcraft synthetic blend you wont go wrong.

 

It won't matter if it had synthetic in it, you can put whatever you want back in it.

 

Just stay motorcraft, that's what the engine was built with.

 

Actually I have heard that if you go with synthetic long enough you cant switch back. Something about what it does to the engine.

 

i always run mobil 1 synthetic. my nearest vatozone always has it on sale with a filter for 30 bucks.

might as well go full syn. my truck just rolled 40k miles. i started using it at about 32k

 

Doesn't matter what it had, it will be fine.

 

Changing the oil is MUCH more important than what you change it with!

 

Just don't use fryer oil!

 

ok thankyou all i have 5 days off starting monday so hopefully i can get the ranger up to par with all the maintenance before the acadamy starts

 

China-Mart sells Mobil1 Synthetic for $22, regular price. The filter isn't $8 from there either.

Anyhow. I put Mobi1 Synthetic in my 07 from the first oil change. Everything else I own gets Mobil1 Synthetic, or Castrol Syntec blend.

 

i use grape seed oil..... but when it gets warm i tend to switch over to a nice extra virgin olive oil.