Now I know why I do extended oil change intervals

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Yep got to agree, oil change is relatively easy. All I do is turn the front wheels all the way to the right and the filter is right there. Have owned mine almost 5 years and change the oil and filter twice a year.

As far as being an Isuzu design, I have a press release from 2000 with Ron Kociba, GM Powertrain chief engineer for the I6 engine. He talks about the R&D, design paramaters, testing, etc that went into it. A couple of quotes from Mr. Kociba:

“If you’re going to make a different engine configuration choice like going from a V to an inline, your only real opportunity is with an all-new vehicle,” said Kociba. “You have to factor in all the various requirements, and if you start with an all-new engine there’s an opportunity to put it right into the design criteria.”

“I’m proud to say that when all was said and done,” said Kociba, “we achieved every one of the technical targets we set. Given our considerable stretch targets, that is a notable success.”


“Part of GM Powertrain’s success is to creating flexible architectures for global applications,” Kociba said. “Once we got started with the Vortec I6, it wasn’t long before we started thinking about a four and a five to add to the family. Incorporating them on largely the same manufacturing
equipment is a real enabler for GM, providing excellent flexibility to respond quickly to market conditions.”
 
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Probably just a plastic/metal "undershield" that needs to be removed in order to gain access to the underside of the engine.




Cee-Gar to Andy..



Thank you kind sir!
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Think that's bad, try removing a 1990 Corrado G60 oil filter. It's so close to the core support. As the filter comes off, it hits the core support while still threaded on. What fun !!!
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I forgot how evil that filter is. It is mounted above the front sway bar and there is no place for leverage.




I think 2004 is when GM relocated the front stabilizer bar through the frame and closer to the bottom of the engine and filter. From what I've read that made it a little trickier to change the filter. On my 2002 the bar is well below the filter mounted to the bottom of the frame with the typical "U" brackets and there's room to work.

I've found it's easier and less messy to go ahead and remove that plastic shield on th ebottom with the oil drain door in it and set it off to the side. 4 bolts and it's out of the way.
 
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..As far as being an Isuzu design, I have a press release from 2000 with Ron Kociba, GM Powertrain chief engineer for the I6 engine. He talks about the R&D, design paramaters, testing, etc that went into it. A couple of quotes from Mr. Kociba...




Tblazed, thanks for the facts on that. Good to see another trailvoy member here!

Joel
 
Back in the day, Hondas typically had non-crossflow heads. The manifolds were located on the firewall side of the transverse engine with the oil filter located toward the front. Child's play to remove, no wrench required. Honda fixed this design by going to a crossflow head and relocating the oil filter toward the rear. Every Honda we have had, save our '76 CVCC Civic, has had the oil filter located deep under the car and well up the side of the engine, with a halfshaft handily in the way, so that it is often difficult to loosen it w/o a wrench. Further, when I was younger and skinnier, I could get to the filter on our '86 Wagovan without lifting the car. Now, I need a little lift just to get to the filter on either our '97 or '99 Accord, although the '97 gives a little more room at the front.
Our elderly 733i has its filter cleverly located so that you cannot remove the canister without making a mess. A piece of stucture is cunningly located right behind/below the canister.
Our old 190e has its filter on top. Should be easy, right? No. There is virtually no hand room between firewall and head, so you often need a wrench and only a cap wrench will do.
Now, my old MGB is almost too easy, old W123 diesels have their filters remote mounted and real easy to remove, and old inline six GMs had their filters mounted well up on the side of the engine, very easy to get at.
Owner maintenance was at one time taken as a given and encouraged. It now seems to be actively discouraged, in myriad ways small and large.
 
On my venerable 528e, with an I 6, I can reach down and give the filter a twist with my left hand and spin it off. Then, it drops into the drain pan without needing to shift the pan. Chevvys and GMC used to have a darn fine I6 at one time. Ford too, guess those days are gone. Now GM needs to buy a Japanese 6 to get the job done. I imagine as long as the filters go on easy on the assembly line , thats all today's engineers are concerned with.
 
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Chevys and GMC used to have a darn fine I6 at one time.... Now GM needs to buy a Japanese 6 to get the job done.




"Japanese"? Might want to re-read this thread.

The GM 4.2 i6 we are talking about is a fine engine, won awards for several years, it's designed by GM and made in USA - Flint Michigan to be exact.

This is not the same as the current Duramax Diesel that IS an Isuzu based design, which is assembled in Moraine Ohio. I think that's where the confusion comes from.
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On my venerable 528e, with an I 6, I can reach down and give the filter a twist with my left hand and spin it off. Then, it drops into the drain pan without needing to shift the pan..




On my 2005 trailblazer 4.2L, the filter & pan drain plug are less than a foot apart. The filter has a drip catcher below it to deflect spillage over the frame and stabilizer bar and into your catch pan. One small drain pan is all you need for the 4.2L. Atleast on the 2005+.

Joel
 
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Come on, that's GM's "professional engineering".


We are professional grade.
So says the GMC truck team, which is good for a bunch of laughs because they take a Chevrolet truck, and do nothing to it except put a GMC tag on it. Pretty dumb.
 
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Come on, that's GM's "professional engineering".


We are professional grade.
So says the GMC truck team, which is good for a bunch of laughs because they take a Chevrolet truck, and do nothing to it except put a GMC tag on it. Pretty dumb.




But since they come off the same assembly line, couldn't it be the other way around?
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I have the same vehicle, please tell me how it is easy. I need the same double jointed elbows to get at mine. Exactly how do you access it. I lay on my back and have to reach up through and around multiple obsticals just to touch my oil filter.
 
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I have the same vehicle, please tell me how it is easy. I need the same double jointed elbows to get at mine. Exactly how do you access it. I lay on my back and have to reach up through and around multiple obsticals just to touch my oil filter.




Again, easy is a matter of personal opinion, what you are used to, skill level, etc.. It certainly does not take any special skills or stretch-armstrong abilty for me (trust me, I'm pretty much skill-less.
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). I suppose one thing you can do is pull the 4 bolts and remove the small cheezy engine belly pan and toss it in the garbage as opposed to just opening the oil change 'door'. Either way, I lay on my back, scoot under just enough to reach the filter & unthread it easily with my fingers & lower it out.
Joel
 
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Either way, I lay on my back, scoot under just enough to reach the filter & unthread it easily with my fingers & lower it out.
Joel





What happens to all that oil splattering everywhere, dribbling down your arm, and making a mess on the concrete floor?

I bet you lay down a piece of cardboard or plywood and sprinkle a half a cup of speedy-dry down, dont'chya?
 
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..What happens to all that oil splattering everywhere, dribbling down your arm, and making a mess on the concrete floor...




I don't mean to break your heart
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, but I get no splatter, mess, etc.. As soon as oil begins to dribble from the loosened filter, I leave it alone until the stream stops, then lower/tilt it out with minimal spillage. Again, the drip catcher directs the majority into my pan. Some gets on the chassis from the filter removal, but still makes it into a small pan & is easily wiped off the chassis. Of course you get some oil on your hand & forearm from the filter r/r, but it's nothin' compared to some vehicles. A kwiki-loob would make a mess I'm sure.

Joel
 
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