factory recommended oil viscosity?

[OilPatch197]

for the old 2.8 motors.

 

[adsm08]

Unless you just got one re-built, forget the factory recommended viscosity.

It was probably 10-30. I'd run it with 15-40.

 

[mn_smokeater]

10-30 if I rember right but I ran 10-40

 

[R***A**N**G**E***R]

Unless you just got one re-built, forget the factory recommended viscosity.

It was probably 10-30. I'd run it with 15-40.

Engine TOLERANCES are so close in these modern engines you really need to FOLLOW what the manufacturer says, so DO NOT listen to this person!!

 

[R***A**N**G**E***R]

for the old 2.8 motors.

Call the ford dealer and tell them exactly what you have and they will look it up and then you will know for sure, remember OPINIONS are like assholes everybody has one!!

 

[adsm08]

Engine TOLERANCES are so close in these modern engines you really need to FOLLOW what the manufacturer says, so DO NOT listen to this person!!

Um.... 2.8L, modern...............? It hasn't been in production for over 20 years. Tolerances in 4.6L, 3.5L yeah, even newer 3.0 and 4.0L maybe. The Coyote 5.0L definitely.

I'm a dealership tech. Spent 2.5 years working the lube rack while in school. I've torn down and put back together a handful of engines (something that you don't see done a lot in the shops anymore). I know about engine TOLERACES and when to FOLLOW or ignore the manufacturer oil specs. Ford even says that engines rated for 5W-20, after they hit the 100,000 mile mark, it is acceptable, and even recommendable, to run them with 5W-30.



What are your qualifications?

 

[R***A**N**G**E***R]

Um.... 2.8L, modern...............? It hasn't been in production for over 20 years. Tolerances in 4.6L, 3.5L yeah, even newer 3.0 and 4.0L maybe. The Coyote 5.0L definitely.

I'm a dealership tech. Spent 2.5 years working the lube rack while in school. I've torn down and put back together a handful of engines (something that you don't see done a lot in the shops anymore). I know about engine TOLERACES and when to FOLLOW or ignore the manufacturer oil specs. Ford even says that engines rated for 5W-20, after they hit the 100,000 mile mark, it is acceptable, and even recommendable, to run them with 5W-30.

What are your qualifications

?

Common sense that is what qualifies me HOWEVER, I didn't realize the 2.8 was so ancient.

 

[Toms01PSD]

Common sense that is what qualifies me HOWEVER, I didn't realize the 2.8 was so ancient.

Common sense tells me you're a moron.

 

[adsm08]

Common sense that is what qualifies me HOWEVER, I didn't realize the 2.8 was so ancient.

HAHA, Ok. I will grant you that if it had genuinely been a modern engine, you would have been very very right, and my initial advice would have been different.


The 2.8 became the 2.9 in 86, and then the 4.0 in 90. The 2.8 we are talking about hasn't been in production for almost 25 years.

 

[strvger]

well, in my 2.8 i run 10w40 in the summer and 5w30 in the winter. summer temps get into the 90's and winter temps can get -30 and lower. and i always use semi-synthetic.
but that's just me.

 

[adsm08]

Most of the early Tanus and Cologne engines were speced for 10-30. It was pretty much the oil of the day.

 

[OilPatch197]

I would like to run 15W-40, is that too thick?

The Engine has over 200 thousand miles, it's had excessive cranking with no oil pressure(blown FIBER timing gears) had some "miracle" additives put in the oil(X1R)

Overheated several times, had to replace a cracked head(and the cylinders are worn when I had the head off, major ridges at the top of cylinders, but it does not smoke)

Only smokes on startup(valve stem seals)

 

[adsm08]

Probably not. I know lots of guys here run that in their 2.9s, and the bearing clearances are similar.

 

[R***A**N**G**E***R]

Common sense tells me you're a moron.

 

[doorgunner]

me......I increase the viscosity until it quits clattering & smoking.......however I use the same guidelines to increase my med dosage also.......