270,000 mile Ford Ranger tear down M1 10w30

[perryg114]

I am in the process of tearing down my 1995 Ford Ranger with 270,000 miles on it. I have used M1 10W30 since 75,000 miles when I bought the truck. I run 10,000 miles between oil changes. A bolt fell through the intake and cracked a piston is the reason I am tearing it down.

Does this have any value to see a high mileage engine as opposed to looking at oil analysis? So far the cam looks good and the cross hatch on the cylinder is still visible with little wear. The valve stems show almost no wear. If there is an interest, I can document in more detail as I progress through the tear down process. The engine is run hard at high RPM's going 80-85 MPH on the way to work everyday. I was impressed with the lack of wear. I have had the truck since about the year 2000.

Perry

 

[Ethan1]

Heck yeah we wanna see those pictures. What engine?

 

[tig1]

If you can take pics we would appreciate it. I saw a Ford 3.0 Vulcan(1998 Taurus) torn down with 180K that sucked water into the engine(tried crossing a flooded country road) and bent a rod. The engine was spotless and showed no signs of wear(was measured). Oil used, M1 10-30 at 10K OCIs.

 

[dblshock]

always nice to look inside after 270k

 

[nicrfe1370]

Perry, if you are able to share pictures with us, I would call that FAR more helpful than UOAs! I would be interested in every little thing you could document, but I'm probably most interested in things like; the compression and oil rings, piston skirts, tiny oil galleys, places where one would expect sludge to build up, and all bearings. Thanks a mil!

 

[KingCake]

Every modern engine will show crosshatch at 300-400K if maintained with the cheapest of SN oils.

 

[CT8]

Originally Posted By: KingCake
Every modern engine will show crosshatch at 300-400K if maintained with the cheapest of SN oils.
Todays "conventional " oils aren't like the 1970 oils the syn oil sellers compare them to!

 

[01rangerxl]

Details and pics definitely welcome.

What engine? Where did the bolt come from?

 

[SR5]

Yes !! I'm interested and I would love a few pictures too.

Which M1 10W-30 did you use?

Regular M1 with a HTHS of 3.0 and 900 ppm Zinc
M1 EP with a HTHS of 3.1 and 900 ppm Zinc
M1 HM with a HTHS of 3.5 and 1100 ppm Zinc

 

[tig1]

Originally Posted By: KingCake
Every modern engine will show crosshatch at 300-400K if maintained with the cheapest of SN oils.


At 10K OCI? Every modern engine?

 

[perryg114]

It is a 2.3L. It was actually a stainless pan head screw that somehow got into the intake while I had the manifold off fixing and finding vacuum leaks. Here is my post on another sight. I will post photos here later.

http://www.ford-trucks.com/forums/1416136-95-ranger-top-end-knocking-noise.html

Perry

 

[dave1251]

Tear downs are more useful then UOA's. UOA's a good for determining OCI's and very slight coolant leaks.

 

[Ethan1]

Originally Posted By: tig1
Originally Posted By: KingCake
Every modern engine will show crosshatch at 300-400K if maintained with the cheapest of SN oils.


At 10K OCI? Every modern engine?


There are many silly geese on the internet

 

[Bud_One]

Pics please

 

[Artem]

If the engine design is good, I expect it will be clean inside. Nothing else to expect.

 

[itguy08]

The Lima 2.3/2.5 is a tough bugger. Mine was installed in a Mustang with a 4 speed stick. Beat the snot out of that thing from 58k to 175k. Did have to do valve seals @ 100k but it started every time and would run for miles at 5k RPM climbing a hill. It was my first car and while it led a hard life I did keep up on oil changes and other maintenance. Using cheap oil and filters.

Only got rid of it because the body was awful and we started doing emissions inspections. Being a poor college student most of it except the cats was jettisoned as it broke.

 

[demarpaint]

Pics would be great. How long were those 80-85 mph highway runs?

 

[JHZR2]

pics!!

 

[Kuato]

Subscribed!

 

[KingCake]

Originally Posted By: tig1
Originally Posted By: KingCake
Every modern engine will show crosshatch at 300-400K if maintained with the cheapest of SN oils.


At 10K OCI? Every modern engine?



10K is standard now