Every man has a right to his own opinion I guess. The way I see it, if a "high milage" oil has more additives and detergents in it to prevent leaks, rejuvenate old seals, and protect against sludge build-up, then I'll use it because it's better for my high-milage engine than an oil that doesn't have the "extra" additives and detergents to do the intended job. Oil is oil, but the additives and detergents in the oil do a certain job just like the oil itself does.

 

Tell you what - put mercon dex in your trans - run it for a 100miles and look at the temp guage.

Put Mercon 5 syn - do the same thing, look at your tep guauge.

BIG DIFFERENCE, right..

Same goes for the motor ..


It matters what oil you use ..


What kind of oil matters.. Heat kills

Theres many advantages to running high grade oils...

 

Well run it when it's new then. If it is so good at protecting against buildup, preventing leaks, etc... Why wait until 70,000 miles?

 

I didn't know that at the time I did my first oil change, or I would've. You're just trolling for an argument as usual. Didn't your momma give you enough attention as a child? Sheesh. I didn't ask whether I should use Max Life, or how to be the world's biggest penny pincher, I just asked if it's ok to switch. I got one straight answer, and a bombardment of opinions on why not to use it. Too bad, I'm going to use it. Ta-Ta...

 

Go ahead and use it. I was not trolling for anything. I just thought it might make a point. How companies just say stupid crap for advertising.

You go into a store to buy oil and you have choices. One in particular says... "maximum protection for your high mileage engines" So you buy it thinking, "it must be what I need.... It says "high mileage" on the bottle!" so... Go ahead. I didn't want to say it that way but oh well. At least it probably won't hurt anything.

 

Oh, I apologize then. I thought it sounded like you were coming off as smart. I see your point though. Some companies do probably do that. I get caught up in the hype very easily. MOST of the time, people always blow things WAY out of proportion and make things more complicated. I usually take people's opinions with a grain of salt, but it's the same damn thing with advertising.

These aren't just "choices", they're hard choices for me. My Dad said it'll do just fine with what I'm using now, and that 75k miles isn't high milage. I don't agree with that, but I'll take his word for it and just stick with what I'm using. He's got more experience with this issue than I do. My engine doesn't leak or anything bad, so "why change now", he says.

I'm trying to start listening and taking into account the opinions of others. That's always been hard for me to do that because I have a one track mind.

 

so me and chester couldn't convince you with many posts but your dad put in his word and now suddenly you've changed your mind.

that's good you'll save money.

i was about ready to chime in again and say just go use it instead of sitting here trying to stir up the pot.

you'll have no regrets

 

Thanks for the advice guys...

 

Listen to your dad. He's right. 70,000 miles is nothing. Mine has over 200,000 and it still runs like new. (take a look at my gallery and see what my truck does on a daily basis) If I don't get at least 300,000 out of it, I'm gonna be pissed. People do blow things way out of porportion. If you're using cheap oil now, and it isn't burning it bad, why change? You could only hope that the "high mileage" oil is just as good!

In my opinion, motorcraft products are high quailty. Also, the engines were built around motorcraft parts and fluids so.... Their air filters are expensive, but they are the best that money can buy. If you get in the dirt a lot, you will eventually have problems if you use other brands....

 

Thanks Chester. You're right. I want to use the cheap motorcraft oil in my next ford because it's a good oil, and it's cheaper than synthetic. I'm not sure whether to go with the 4.6 or the 5.4 though. I'm leaning towards the 4.6 because I don't tow anything but a 16' aluminum boat, and the new 5.4's have spark plug removal problems. I dunno yet. I'm trying to get some opinions on that too.

 

synthetics and blends are more stable at high temperatures and will typically cause less engine sludge.

if your engine isn't leaking oil or burning oil there is no compelling need for maxlife.

my 97 f150 4.6l has 165,000 and uses less than a half quart in 4-6000 miles, and does not leak. I have always used Mobil 1 5w30. I have removed the EGR periodically and have never found deposits in the passages which I attribute to use of a synthetic.

at some point in the manufacturing cycle the raw materials for synthetics started out as a barrel of crude oil.

 

rmeidlinger,

Thanks for the info.

 

I hate the word sludge. That is a very unscientific description of a broad condition with many causes. One being the inherent nature of burning gasoline, burning oil, and heat.

 

I don't like that word either and was trying to think of another word . gunk was my second choice but that ain't much better. any alternatives???

 

All engines are dirty on the inside. That's the nature of combustion. It doesn't hurt them. Nobody ever blew an engine because of too much sludge.