Change your oil!!!!!!!!!!!!!!!!!!!!!

osufans · Nov 12, 2010

tjkj2002 said:
Master Techs normally never do oil changes so there not increasing there paycheck at all by advising 3k OCI's due to there higher pay and skill is wasted on doing oil changes.

I'm a Master Tech and rarely ever do a oil change,the shop I work at looses money if I do a oil change.There are times I do oil changes but normally with other high paying jobs like intake gaskets jobs and such.

Right, but what I'm pointing out here is that Master Techs as a group, which is what you stated, reinforce the idea of 3K OCI's being necessary. While it may not be a Master Tech performing the work, the work has to be done somewhere. And of course while the customer has their car there, "free inspections" are performed to identify other work that should be performed. I'm not saying this is all bad, because sure, things are found that would otherwise be a hazard to the customer if left unrepaired.....but if these customers were extending their OCI's, and coming less frequently, then less revenue is generated on a whole.

I'm just saying, show me an independent line of research that doesn't have an ulterior motive behind it, or at least won't be in a conflict of interest when presenting said information.

gnp.hiker · Nov 12, 2010

Stop Changing Your Oil Breaking the 3,000-Mile Habit

DON’T WASTE MONEY ON OUTDATED ADVICE; FORD TAKES A LOOK AT LONGSTANDING MAINTENANCE MYTHS

GM Oil Life System (OLS) and Simplified Maintenance Schedule

the Pro's against the 3K OCI way out favor those pushing it. This topic is like beating a dead horse though.

tjkj2002 · Nov 12, 2010

gnp.hiker said:
Stop Changing Your Oil Breaking the 3,000-Mile Habit

DON’T WASTE MONEY ON OUTDATED ADVICE; FORD TAKES A LOOK AT LONGSTANDING MAINTENANCE MYTHS

GM Oil Life System (OLS) and Simplified Maintenance Schedule

the Pro's against the 3K OCI way out favor those pushing it. This topic is like beating a dead horse though.

You know those stupid "change oil lights" often come on well before 3k.heck in newer Jeeps with thoise nice little reminders will come on before 3k if you shift into low range.

tjkj2002 · Nov 12, 2010

osufans said:
I'm just saying, show me an independent line of research that doesn't have an ulterior motive behind it, or at least won't be in a conflict of interest when presenting said information.

That is true for either side.Those that are for 3k OCI's will make more money.Those that are for extended OCI's have ulterior motives also,but alot of those poeple are now changing there minds on extended OCI's in automatic transmissions and diffs.

gnp.hiker · Nov 12, 2010

tjkj2002 said:
You know those stupid "change oil lights" often come on well before 3k.heck in newer Jeeps with thoise nice little reminders will come on before 3k if you shift into low range.

So your saying the Chrysler/Jeep system is flawed? Heck if I drove around town in my GMC in low range routinely I'd imagine it'd need a premature OC.

tjkj2002 · Nov 12, 2010

gnp.hiker said:
So your saying the Chrysler/Jeep system is flawed? Heck if I drove around town in my GMC in low range routinely I'd imagine it'd need a premature OC.

No not flawed but when in low range you are now under the severe maintenance schedule which is 3k OCI's per OEM recommendations.

Oh and GM's oil change lights are the flawed system,some never turn on and others you can never reset.

Midgear · Nov 12, 2010

I had an oldsmobile alero before I picked up mah Jeep-

the alero had the LA1 3400 V6 (quite similar to the 3100, or 3.1 that is pictured) -- these engines had a very common problem where the lower intake manifold gaskets would fail, causing oil and coolant to mix with one another.

I know that you should change your oil more often than 10,000 mile intervals, but I think that this problem here was going to happen sooner or later, even if the oil was changed on a 3,000 mile interval.

several websites and forums regarding this "LIMG leak" can be found, people trying to push for a recall ect ect. - the only way to prevent damage / sludge buildup like this is to check both your oil and your coolant- if you notice any sludgyness at all, you've got a problem.

they supposedly started using newer gaskets on the lower intake manifold and the problem was "cured" somewhere in 03' or 04' ... but whatever- I drive a Jeep now.

tjkj2002 · Nov 12, 2010

Midgear said:
I had an oldsmobile alero before I picked up mah Jeep-

the alero had the LA1 3400 V6 (quite similar to the 3100, or 3.1 that is pictured) -- these engines had a very common problem where the lower intake manifold gaskets would fail, causing oil and coolant to mix with one another.

I know that you should change your oil more often than 10,000 mile intervals, but I think that this problem here was going to happen sooner or later, even if the oil was changed on a 3,000 mile interval.

several websites and forums regarding this "LIMG leak" can be found, people trying to push for a recall ect ect. - the only way to prevent damage / sludge buildup like this is to check both your oil and your coolant- if you notice any sludgyness at all, you've got a problem.

they supposedly started using newer gaskets on the lower intake manifold and the problem was "cured" somewhere in 03' or 04' ... but whatever- I drive a Jeep now.

The revised gaskets are crap also,it's just a very bad engine design.The biggest issue is Dexacool and any other OAT coolant.

loves_off_roading · Nov 13, 2010

From what I have heard, changing your oil every 3k will actually cause a lot of wear. As your oil gets older the engine will wear less. But I wouldn't go over 5,000k for an oil change so you engine doesn't build up sludge. jmho

al7fi · Nov 13, 2010

You can pay now or pay later (JMHO). One new/rebuilt engine = a lot of oil & filter changes at 3K.
It's your ride, do what you want to do! (and live with it)

MoreTorque06 · Nov 14, 2010

I change mine every 8k-10k or so. 121k and counting on my 2006.

I drive 80% freeway and always use a top quality synthetic oil and filter however.

incommando · Nov 15, 2010

My Dad's '87 B350's 318 had 218,000 miles on it when he sold it...and he had me change the oil/filter every 6K-8K with whatever oil/filter combo he could get cheapest at the time. What dos this prove? Nothing.

Having to pry out the fact that the sludge in that engine was due to a contamination issue common to that POS engine makes me wonder why this subject was brought up in the first place....

tjkj2002 · Nov 15, 2010

incommando said:
My Dad's '87 B350's 318 had 218,000 miles on it when he sold it...and he had me change the oil/filter every 6K-8K with whatever oil/filter combo he could get cheapest at the time. What dos this prove? Nothing.

Having to pry out the fact that the sludge in that engine was due to a contamination issue common to that POS engine makes me wonder why this subject was brought up in the first place....

Did he tear the engine apart? Nope so you do not know it did not have sludge build up as a engine can still run good with sludge buildup.

Prospect62 · Nov 15, 2010

tjkj2002 said:
a engine can still run good with sludge buildup.

Not for long...

tjkj2002 · Nov 15, 2010

Prospect62 said:
Not for long...

Actually you would be suprised as long as it does not fall into the pan and clog the oil pickup or any oil galley's.

Marlon_JB2 · Nov 15, 2010

tjkj2002 said:
You know those stupid "change oil lights" often come on well before 3k.heck in newer Jeeps with thoise nice little reminders will come on before 3k if you shift into low range.

OK Troy, I know you're the source a lot of times but this is NOT correct. I'm sitting at 3K RIGHT NOW and the oil change light did NOT come on "before 3k" and yes I have been in low range... a few times already.

ThunderbirdJunkie · Nov 15, 2010

What's dexacool?

osufans · Nov 15, 2010

I dunno about dexacool, but DEX-Cool apparently has some issues:

DEX-COOL specifically has caused controversy. Litigation has linked it with intake manifold gasket failures in GM's 3.1L and 3.4L engines, and with other failures in 3.8L and 4.3L engines. Class action lawsuits were registered in several states, and in Canada,[13] to address some of these claims. The first of these to reach a decision was in Missouri where a settlement was announced early in December, 2007.[14] Late in March 2008, GM agreed to compensate complainants in the remaining 49 states.[15]

http://en.wikipedia.org/wiki/Antifreeze

So again...what really caused the engine failure here? Extended oil-changes, or a known bad design?

67Customs · Nov 16, 2010

tjkj2002 said:
Did he tear the engine apart? Nope so you do not know it did not have sludge build up as a engine can still run good with sludge buildup.

The other side of the coin is that you don't know the condition of the inside of the engine either.

Not trying to be a ****, but I don't think you can just automatically assume that any engine that ran EOCIs automatically has sludge build-up.

Just fueling the discussion. I personally don't think EOCI's above 7K is a good idea personally.

I prefer a good synthetic, good filter and 5K oil changes.

Dave · Nov 16, 2010

67Customs said:
The other side of the coin is that you don't know the condition of the inside of the engine either.

Not trying to be a ****, but I don't think you can just automatically assume that any engine that ran EOCIs automatically has sludge build-up.

Just fueling the discussion. I personally don't think EOCI's above 7K is a good idea personally.

I prefer a good synthetic, good filter and 5K oil changes.

Also, what if the vehicle owner had the oil changes done and specified synthetic and they used dino, or worse yet, didn't change it? Or the owner didn't even change it at all and didn't want to admit it. We were going by what the owner told the mechanic too. It (sludge) looks bad but some further testing needs to be done.

One thing seems certain, that if you used a good brand synthetic oil/filter and stuck to a oil change regimen of 5K or less and did it yourself, or a trusted mechanic, I don't see how your engine could look like the one pictured, unless something else was involved.

Just some more thoughts.

Dave

Change your oil!!!!!!!!!!!!!!!!!!!!!

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