As I mentioned above you will have a tough time finding the 10W-30 HDEO as compared to the 15W-40 HDEO. Personally I don't like anything over 10W- when cold because even that is still too thick on start up to prevent excess wear. That is why you see 0W and 5W with 0W being synthetic. I don't use anything over 10W- in my vehicles. Then for the hot temp viscosity -40 maybe too thick to ever run at it's correct viscosity in our engines. You want the oil to run at the right viscosity designed for when hot. You can be too thin and too thick which isn't optimal. Same holds true for ZDDP as you need some but too much is also bad for an engine like ours.

I was just at a 7 store, locally owned parts store, and this time asked who deals with oil. Suggested the 10W-30 HDEO should be stocked as they might be surprised by how much sells. Told them I have 4 that would use it. Anyway for an older stock engine you could safely run an SN oil in 5W-30. Thin viscosity for start up and then 30W when at operating temp. Several to pick from if you look at the link. Looks like Penzoil 5W-30 has the highest levels of zinc and phosphorus along with moly and boron for extra added wear protection. Looks so good I may put it in the Dodge, Mercury and F100 next oil change plus easy to find. Actually 6 of my 8 vehicles could use it.

Petroleum Quality Intitute of America

 

Agreed!...

 

so online it says that NAPA carrys Rotella T Triple Protection 10W-30 so im going to call them them tomorrow and see if there is any in stock.
also read that Rotella T Triple Protection 10W-30 is not synthetic or a synthetic blend so if i can find it there im going to pick it up asap.
still going to go to wally world to get the motorcraft filter unless they carry it there as well.

 

If you have an Autozone handy they usually have the motorcraft filters!

 

i hit up 3 stores looking for what i wanted and autozone was one of them.
the one i looked at told me that they dont carry motorcraft
the other 2, wally mart (had motorcraft but not the oil i wanted), baxters auto parts didnt have ether. i think it is weird that baxters didnt because they are known to have or be able to get harder to find things for custom cars and older rides around here.

 

What!!! No FL1A. What is the world coming to??? I do know where there are a dozen of them right now. Hehehe...

 

so do I ..... my garage!

 

wally mart has a ton of them so i am going to get a few and keep them around. just wish they had the oil i want too.

 

Okay, had to call shell and see if anyone around my area carried the triple protection kind and to my surprise only one place has it.
Its sold in cases so its 43-46 dollars a case and it comes in quarts or gallons

 

I just use 10w-30... just like the paper inside the glove compartment says

 

I do NOT like to use Multi Weight oils in my trucks..... it's 30 weight in the winter and 40 weight in the summer.

 

why is that?

 

Multi weight oils are thin when cold.... thin oil when you start a old engine is not good for the bearings and thin oil will tend to cause more oil leaks. the single weight oils are thick right from the getgo, thus better protection on startup and less oil leaking from the gaskets

 

I am just the opposite. There is no oil with a thin enough viscosity to protect the engine from wear and tear on start up. Most wear and tear on an engine occurs at start up. Search the link I provided. The thicker the oil the slower it will be getting up into the engine. If the engine has sat a few days there is even less protection as the oil has all bled down into the pan. Imagine the engine has sat a week and you pump your gas pedal several times, turn the engine over for 5 seconds or more, pump the pedal again, turn the engine over for 5 seconds and it starts. Not uncommon for an engine not driven every day. Imagine those bearings with no oil on them...ouch!

My truck is currently running Rotella T6 5W-40 synthetic to try it out and it was cheap. Oh, and I have no leaks. My oil pressure goes immediately to 60 lbs. the moment the engine starts. Perfect, just what I wanted. Eventually will go to 5W-30 for it. In fact all vehicles will have 5W-30 except the Focus with 5W-20 and the Cougar with VR1 10-30. Not what I want in the Cougar, since it sits for 2-3 weeks, but it has a performance cam and that is the best that can be done with zinc protection.

Link about basic motor oil and their properties.
Motor Oil 101 - Bob is the Oil Guy

 

How cold does it get in AZN? Here in Michigan were talk -30 on some days but not lately. I need multi weight oil or it would be like suck molasses through a straw.