oil is oil is oil...all the same

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The jig is up.
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Yeaaaah, oil is oil.

Same Audi 12 engine:

On Syntec 5w-50...

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On Iffy Lube...

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Considering they were 10k intervals on Syntec and the other is unknown, it's not likely that the owner was going *much* past 10k between Iffy Lube visits. Anything is possible though.
Perhaps they did not even change it?
 
Reasonable OCIs with the latest API/ILSAC "S" or "GF" category for American and Japanese engines (or the designated ACEA category in the case of fussier European engines) will result in a long-lived motor. This is only obsessive rocket science for those who insist on making it so for fun or profit.
 
That tempo probably made 100hp out of 2.3L. I doubt that it could stress the oil compared to a newer 1.5L making the same power while passing todays emissions tests with a sump that holds ~1 less quart of oil.

Bruce, same goes for Fords SB. It just doesn't stress the oil.

I personally wouldn't use a cheapo oil for 5k on a higher RPM, multivalve, multicam, turbo'd, acronym loaded engine, with a small sump(thinking Nissan/VW/... and other automakers too).
 
Auto union,

Unless you know the full history of both of the engines in your photos, we really can't say too much about your photos.

The bottom one ran Mobil 1? Or Syntec? Or water?

Really we would need to know before we can blame oils.

quote:

Considering they were 10k intervals on Syntec and the other is unknown, it's not likely that the owner was going *much* past 10k between Iffy Lube visits. Anything is possible though.
Perhaps they did not even change it?

We blame the oil for this?
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Conventional oils changed when $1-2 oils should be changed (5k miles or 6 months) will have the same end result as Syn changed at 10k. For a less money.

Clean and well protected.
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If your manual states you must run Syn, You have too.
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Not too many engines REQUIRE it.
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Take care, Bill
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You cant make that blanket statement..
It depends on what engine.. Some engines
no doubt that is true.. some its not true.


quote:

Originally posted by Bill in Utah:
Auto union,

Unless you know the full history of both of the engines in your photos, we really can't say too much about your photos.

The bottom one ran Mobil 1? Or Syntec? Or water?

Really we would need to know before we can blame oils.

quote:

Considering they were 10k intervals on Syntec and the other is unknown, it's not likely that the owner was going *much* past 10k between Iffy Lube visits. Anything is possible though.
Perhaps they did not even change it?

We blame the oil for this?
confused.gif


Conventional oils changed when $1-2 oils should be changed (5k miles or 6 months) will have the same end result as Syn changed at 10k. For a less money.

Clean and well protected.
cheers.gif


If your manual states you must run Syn, You have too.
grin.gif


Not too many engines REQUIRE it.
spaz.gif


Take care, Bill
biggthumbcoffe.gif


 
Chances are whatever grocery store brand oil you was using was made by someone else. Walmart doesn't make oil but by gosh they have their st line of stuff. Someone is making it. Chances are it may be good stuff. What I don't get is if ur buying at a grocery store the markup is crazy most the time. You could be buying name brand on sale somewhere for cheaper. I thought the grocery stores sold oil to the people who just seem to top their cars off once in a while and never changed the oil hardly. There is too many good oils on the market for a good price to be using something we really don't know about.
 
By the way..on my 85 Tempo, I ALWAYS did 3000 miles
oil changes and filter. The body was falling apart
at 192,000, but the engine was still strong!
 
quote:

Originally posted by Clyde65:
I think I'll start me a thread saying "10W-40 is the best viscosity for ALL cars and trucks" and see what happens.
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I think you meant to say that "10W-40 is a UNIVERSAL oil and can be used in all motor vehicles".
 
Those sludge deposits are from running the oil WAY past the oci. Jiffy lube isnt the problem so much as its the reason, anyone who goes to a quick lube is not going to be as concerned with getting it changed on time, and thats what you end up with in the extreme. They should have run boutique syn, its formulated with shredded hundred dollar bills for piece of mind.
 
Well, the great thing about the 2.3 HSC in the Tempo/Topaz was it's incredible ability to leak oil. You likely ended up adding a fresh quart every 500 miles or so, more often sometimes, as the oil worked it's way out through the valve cover, oil pan and timing cover gaskets. It probably equated to a 2500 mile OCI with the addin oil figured. Even a mediocre oil would be hard to stress out with an OCI like that.
 
Flinter is right--with 3,000 mile OCI's any oil WILL do. It's only when we go beyond that when the differences among oils becomes relevant. Salad dressing will probably get you to 100,000 miles if changed every 3,000 miles.
 
OK, as far as the Syntec engine, we KNOW what service it got. As for the other engine, it's probally did not get Syntec at 10k. It's just an example of what happens w/o correct service. Now, Does it look like an engine that went LONGER than 10k on Synth? No. Does it look like a non-synth engine? Yes. Can this happen on 10k DINO services? Yes. Is "oil just oil"? No. My assertion is that the "dino" engine likely got ....about 10k intervals, probally not longer, that's just an experienced guess. So, you can't compare Syntec to dino at 10k intervals.
 
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This is a 1994 dodge v6 last year when I changed the valve seals at approx 110,000 miles. It ran on dino with about 2000-5000 oil changes on lots of differnet oil (pens, castrol, valvoline, etc). While not nasty it does have a layer of crud on the retainers. Note the second retainer that was scratched by the spring compressor.
 
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