syn oil not good for older engines

[Soundguy]

</font><font color="blue" class="small">( it's interesting that even the US automakers are using synthetics in items like the rear end of trucks. Have they too been watching to much TV? )</font>

Neither I nor Slowrev is saying that synthetics are bad.. or that they don't have specific applications.. even very broad specific applications. It is just that.. like so many other things... It just can't do it all. As the company stated.. there are certain applications where synthetics were just simply not apropriate.

At this point in our technological development.. we simply have not come up with a 'magic bullet' / 'one size fits all' lubricant.. that works in ALL circumstances, and applications.

That's all we're saying.

Soundguy

 

[_RaT_]

"I feel the same way about marketing.. I pretty much look at everything with 'optimystic skepticism'. "

I thought the commercials were there so you could get up and go to the bathroom, grab a bite to eat, or make popcorn. /forums/images/graemlins/grin.gif

 

[Soundguy]

I only get to watch about 3 hours of tv a week.. so when I'm watching it.. I'm not doing anything else.

Unfortunately this has gotten me in trouble a few times as I hear something in the background and ignore it.. then a few minutes later the wifey stands up and says 'well? what do you think about what I said'. At that point I usually miss a few minutes of tv...( a few minutes if I'm lucky... )

Soundguy

 

[_RaT_]

I agree with part of your statement Chris, I understand your point of view, I don't understand Slowrev's.

 

[slowrev]

I am not ridiculing those who use it, but those who blindly use it. because of the marketing/brainwashing commercials and such. I use synthetic oil, ( not in everything) but still change at regular intervals. I put synthetic oil in my old self propelled lawnmower, wanting it to last....mustof jinxed it....well the wife loaned it to a teen aged neighbor and he hit a stump and warped the crank...... guess I will have to loan out her sewing machine, I have a friend who meeds to sew a loadcover tarp for his truck /forums/images/graemlins/smile.gif

Not picking on "normal" the users of synthetic products at all just the "raving" ones.

 

[Soundguy]

A while back ( oh..10 years? ) a neighbor lady hit a stump with a push mower.. Blad was firmly attatched to mower output shaft ( or so it seemed ) but wouldn't turn with the engine.

I though it was toasted.. but turns out there was a soft key that sheared. Some square key stock from the hardware store and she was back in business.

I've never seen another situation where that happened... Is that a common way to attatch the push mower blade carrier? seems like it is a good idea.. if the key will shear.. and save the mower.

Anyone else experience this?

Soundguy

 

[slowrev]

Soundguy,
I have seen 3 walk behind mowers that bent the crank from hitting a stump. My current one is bent pretty badly, it wallowed out the seal and you can see it wobble when rotating by hand. I don't even like the new mower, it has a push on handle to controll the speed and it surges and tires my hands more than the older one. Might see if I can use the old handle and controls off the old one on the new one. Or just swap the motor from the new one to the old one.

 

[at_obuk]

I've used synthetic Mobil 1 in all my new cars and have had no problems with the engines. All but three I've taken to 260,000 miles or more. The three I still own. The Subaru with 160,000 miles, Ford PU 30,000 miles and a Hundai with 800 miles. All of these I expect to take to 250,000 miles or more using Mobil 1.
However even before I saw the original post I don't think I would use it in an engine that was pre 1980 or had alot of miles on it and wasn't using it already.
For what it's worth.......................

Eric P.

 

[fractal]

Here's my take, from the perspective of an electronic hardware manufacturer...

We warranty our product for use in certain machines. We do not warranty our product for use in other machines. That does not mean that it does not (or that it does) work in other machines. Just that we do not warranty it to work in them.

I fully understand when someone says "we have validated our product to work with xyz". It says just that. That it will work under conditions xyz. The legal beagles tell us the fiddle words we must use if someone asks if it will work under conditions abc.

My personal belief is that there probably ARE situations that syn oil will harm older engines. I also believe that there are also older engines that syn oil will NOT harm. I myself run mobil 1 in all my air cooled engines. I think I am doing them a favor. I may be wrong. If so, I am paying for new engines. Either way, the manufacturer will tell you what they have tested the product to work with and tell you to use what they have tested against. To expect them to go back and retest all the older engines they may not even have against syn oil is a bit niave.

 

[KubotaBling]

not kickin u but they've been gettin 300K outa cars for 30yrs w/o synthetics.. i think there good but hyped up alot..