I called 2 mississippi dealership service dept and asked them what oil they used in the new F150s...

EAST FORD
GRAY DANIELS Ford

they both said they use 5-30 mostly because 5-w20 was hard to get and 5w-30 was in their barrells...

ISNT this a violation of ford warrenty????

 

I'm sure they've figured out some way to cover their butts......

East Ford is the last place I'd ever buy/service a vehicle anyway.

I bought my truck new at Gray Daniels in '97, and used to have them do the servicing if I was in town - course, my truck calls for 5W-30, so I guess I'm covered

You from the Metro Jackson area?

Jamie D.

 

BYRAM

 

Aaah.....

I grew up in Rankin County, Pearl to be exact......

I've used that short-cut from Florence to Byram a time or 2, and can remember when that 18-Wheeler drove across the Swinging Bridge and closed it down for good. We used to drive across that bridge and slam on brakes right in the middle and "ride the wave".

Oh, well - back to oil. I'm sure that if you requested it, Gray Daniels will use whatever grade you request, especially if you remind them of the specs.

One thing I have found, not just with dealerships, but places like Wal-Mart and Jiffy Lube will put whatever costs the least in your crankcase (usually 10W-30) UNLESS you specify what weight to use.

As for voiding your warranty, I believe the case could be made that "they are the professionals, they should know what grade of oil to use" for any warranty claims that might arise. I would just make sure that wherever I had it done, I would specify the correct weight and MAKE SURE the receipt states what weight was used.

My $.02

Jamie D.

 

voiding the warrenty? what are they gonna do? drain it out and spend hours and many $$$ sending it to a lab to determine what weight it is? and at that... its only a SLIGHT bit thicker... i mean SO slight that its not even worth talking about... the difference between a 10w30 and a 20w50 isnt all that noticable unless you are a tech and know what to look for... and have seen those oils side by side many times in the past... but the difference between 5w30 and 5w20??? you will NEVER look at them and tell the difference.... and who said that will void your warrenty? oil reccomendations are different as the season changes... most people use a 10w30 or 10w40 in really hot weather... and in the winter they run back to the 5w30... so an oil change is not going to void your warrenty lol but if it helps you sleep at night, if you ever DO have a warrenty issue, just keep an extra few quarts and a filter ready and swap em out before going to the dealer... i wouldnt... but if you are that worried about it, that may give you some peace of mind

 

You don't think Ford will pay up U$20 for an oil analysis if it could save them U$5000 for a new engine?
In any case, since the dealer put in the oil, they are responsible if the engine blows. And the dealer would have to pay, not Ford.

Fritz

 

Don't worry, the engin isn't going to blow because you have 5w-30.

 

||_ ((o)) ||_

my point exactly, but would an oil analysis see the weight as well? i mean, in terms of a difference between 5w20 and 5w30?

 

Yes!

How many times have you seen Conspiracy Theory!?

 

No!

 

damn... why you guys jumpin my bone about it? lol im only quoting fritz on that... i totally dont believe they would even go through those lengths, and if they did, i dont see how any cheap analysis would show proof of a difference in 10 weight points in the operating temp weight of the oil.... take a deep breath... i think people are starting to get the wrong idea about me here lol just an information seeker, bringing in new argument to see what turns up to lay mine to rest have a cold one...

 

So, what is a viscometer then?

1bad97F150,

My original post was for the owner of this thread. Then when you responded, I was thinking that you were the owner of this Thread for some reason, sorry!

I agree, I don't believe the dealer would go through all that trouble either. I mean it's just 5W-30, if they were substituting your 5W-20 with gear oil, I might throw a hissy fit.

Anyway, Just a little confusion there.

 

Dont even trip

 

The point being made is that a 5w-30 is on the low end of the 30 weight range, and a 5w-20 is on the high end of the 20 weight range. The difference is small when measured with a viscometer.

The point that has not been made is that one thing a UOA shows is how well an oil holds the viscosity it had in a virgin analysis. It may thicken or may thin out over time. If the UOA shows it to be thin for a 30 weight does that mean it thinned out over time, or was a 20 weight to start and thickened a bit?

I'm sure an expert could say it tests more like one oil than another, but then how could any expert possibly prove that any engine problem was a result of using 5w-30.