Its time for my first oil change (since ive owned it) in my 2000 excursion (v-10). I went in to oriely's and asked what oil was recomended for this engine. They guy checked the computer and said it recomended 5w20 sythetic. I have NEVER used 5w20 in anything I have owned. I do use sythetic however. My excursion has 150,000 miles on it and runs great. I bought the 5w20 because they said that is what it calls for. But now I am having second thoughts. Should this be ok?

Thanks in advance

 

It's exactly what you should be using, 5w20 is what is specified by ford for the modular engines. 5w30 is okay as well since that is what ford originally specified, but if you live in a really cold climate then it's safer to stick with the 5w20 due to the smaller tolerances of the modular engines.

 

Thank you sir! I wouldn't say we live in a real cold climate (however it has been the last few weeks here in Ok).

 

Ford specs call for 5w-30.....I wouldnt put 5w-20 in a engine with 150,000+ miles on it. Be sure to keep tabs on the oil level.

 

Looks like I'm mistaken, I could of sworn they specified 5w20 in the V10s. Here's a link to the owners manual:

http://www.motorcraftservice.com/?li.../00hdwog3e.pdf

If you go to page 207 you'll see it specifies 5w-30.

 

Wasn't there a bulletin that Ford is now recommending 5w20?

 

My '02 Ex with the 6.8L V10 has 5W-20 stamped on the oil fill cap. Does your 2000 have anything stamped on it?

 

I know that my '99 F-350 has 5W-20 on the oil fill cap. That's probably why I was thinking 5W-20 was the correct one.

 

I believe its stamped 5w30. However, the parts store gave the recommendation based off the bulletin saying ford now recommends 5w20. I am sure with the cold weather 5w20 will be fine for now and I can change back to 5w30 at the next oil change

 

I have a 2002 V10 Excursion and my cap says 5W-30 on it also! And if you enter all the info in on Mobil 1's sight it will tell you 5W-30 also.

 

Ford issued a TSB several years ago changing the recommended oil to 5W20. That's what I've been using in my 145,000 mile V10.

 

My 01 f250 has 5w20 on the fill cap. I read a post in this forum somewhere about Ford switching the recommended oil from 5w30 to 5w20. My truck has 101,000 miles and I just put in 5w20 synthetic. No leaks, good oil pressure. Can't think of a reason not to use the recommended weight.

 

My oil filler cap says 5W-20 as well. 2002 Excursion V10.

 

Similar discussion a couple weeks ago.

https://www.ford-trucks.com/forums/1...motor-oil.html

Conclusion: Doesn't much matter which you use.... Either one is adequate. Pick your choice and drive.

 

The Motorcraft 5w20 is a synthetic blend (or semi-synthetic) and it works fine. At least it has in my '00 for more than 100,000 miles.

I believe 5W20 is required (although my manual says 5W30), but I don't remember it saying anything about synthetic being a requirement.