First Oil Change on my 2011 GMC

[foghorn23]

That list hasn't been updated, any oil marked with dexos1™ label is "approved".

 

 

That's not true. GM updates that list as needed. If the oil isn't on it, then it isn't "approved" by GM. Many oils claim that meet the dexos spec, and they may, but if they don't have the approved dexos tag on the front of the bottle and/or have their name on GM's list, then it is a no go.

 

 

+1, Spawn is right. That's what I meant about the waters being muddy. There are "approved oils" (on the list/approved by GM) and there are "meets GM dexos" oils (not on the list/oil company gives its word) The unknown is how GM would respond to an engine failure with a non-approved dexos spec oil.

 

Will oils from Royal Purple, Castrol, or Valvoline that meet the dexos spec blow up your truck? No. Would GM try to blame engine problems on the use of these oils? Unknown. What's the chance of having to really worry about it? Very slim, I guess.

[EX-F150 owner]

This must be what those oil companys are thinking that won't pay GM for the licensing..

 

 

 

Tommy: Wait just a sec Ted, you suppose a man buy's a box marked "dexos 1 approved" because he wants to feel all warm inside, am I right?

Ted: it makes a man feel good,

Tommy: sure, why wouldn't it, hell if you left it under your pillow at night, the GM fairly might leave you a quarter, am I right Ted?

Ted: whats your point,

Tommy: Well what I'm trying to say is how do you know this fairly isn't a crazy glue sniffer, build a model airplane he says well we're not buying it. He snuck into your house one time, that's all it takes, next thing you know your daughter's knocked up and there's money missing off your dresser, I've seen it a hundred times

Ted: What's your point?

Tommy: What I'm trying to say is when you buy a box marked dexos 1 approved, all your getting is a guranteed piece of shit. Hey if you want me to take a dump in a box and mark it dexos 1 approved, I will, I have spare time. But for your daughter's sake, for your company's sake, you might wanna buy a quality product from me.

[Gurrzt]

Please do not misunderstand, I have used Royal Purple 10w-30 in my 2001 Z28 (Sara) exclusively (sp) for over 10 years. It is some killer stuff.

 

I personally think that the vehicle manufacturers will look for ANY reason to void a warrenty, example the dealer wanted to "flash" a updated tune to my Z28 back in 2003, when I asked them not to do this, I explained that I had a "custom dyno tune", and to say the least they were running around in a state of orgasim, telling me that my warrenty was voided. They were salavating while entering it in their computer. Moral of story? "do not take your modified vehicle in for a free oil change" LOL

[j-ten-ner]

Just curious.

I thought one has to get the service (like oil change) done by a GM dealer or at least by a certified shop (like Mr.Lube) as long as the car is under warranty?

Thats one reason I've never considered to buy a brand new truck.

 

First the uge gab in the price (new truck to an used one) and in addition the charge for the service.

 

I mean if I buy a new truck and do all the service by myself (with certified products) will I still have factory warranty?

 

What about the grease on the front axle or drive shaft?

 

Or the maintenance of the leather seats? What if I use "Mother" products instead of the products listed in the owners manual? (ok maybe that's a little over the line )

 

so long

j-ten-ner

[Gurrzt]

I believe that if you have receipts from non dealers on oil changes that specify the oil and filter used, and the milage that it was changed, your warrenty will stay in force.

[CKNSLS]

The AC Delco filters are inferior to a least two other products out there. After extensive research, I have settled on either Bosch or Purolator Pure One. (were talking mid-price filters here). If you want to spend some bucks, then Mobil One, Amsoil, or Royal Purple filters.

 

So I use Mobil One oil with either Purolator or Bosch filters. I would like to see GM deny a claim based on an oil filter, when many independent people have cut open a Delco filter and compared how inferior it is to some of the competition.

[gnet158]

Pennzoil Platinmum or Ultra, Wix, Napa Gold, or purlator Pure One oil filter and be done.

[newdude]

The AC Delco filters are inferior to a least two other products out there. After extensive research, I have settled on either Bosch or Purolator Pure One. (were talking mid-price filters here). If you want to spend some bucks, then Mobil One, Amsoil, or Royal Purple filters.

 

So I use Mobil One oil with either Purolator or Bosch filters. I would like to see GM deny a claim based on an oil filter, when many independent people have cut open a Delco filter and compared how inferior it is to some of the competition.

 

 

PF48 use the old design ACDelco filter construction, and not the new E-Core junk (no plastic you can see, its metal inside). Some of those you mentioned, I believe Mobil and the Bosch are made by Champion Labs, the makers of ACDelco filters, and some of them use the non-Ecore design, just like the PF48.

[CKNSLS]

The AC Delco filters are inferior to a least two other products out there. After extensive research, I have settled on either Bosch or Purolator Pure One. (were talking mid-price filters here). If you want to spend some bucks, then Mobil One, Amsoil, or Royal Purple filters.

 

So I use Mobil One oil with either Purolator or Bosch filters. I would like to see GM deny a claim based on an oil filter, when many independent people have cut open a Delco filter and compared how inferior it is to some of the competition.

 

 

PF48 use the old design ACDelco filter construction, and not the new E-Core junk (no plastic you can see, its metal inside). Some of those you mentioned, I believe Mobil and the Bosch are made by Champion Labs, the makers of ACDelco filters, and some of them use the non-Ecore design, just like the PF48.

 

 

It goes to how fine a micron it filters, total sq. inches of filter media, overall construction,etc.. True the Ecore design is basically a cost saving measure, it doesn't affect the basic functions of a filter. I do know that the two filters I mentioned excell in those things over the AC Delco, even if they are made by the same company. I could site my link-but it's a competitior website so I don't think that's allowed.

[foghorn23]

True the Ecore design is basically a cost saving measure, it doesn't affect the basic functions of a filter.

 

 

I will be the first to admit that I don't have an engineering degree, but with the plastic center cage design of the ecore filter, there are large gaps where the filter media is not supported. It has been reported that these large gaps in the ecore cage can allow the poorly supported filter media to rip.

 

The good news for now is that I can still find the PF48 filters for the 900 series trucks in the traditional metal endcap/center tube design. I haven't seen a PF46 (old bodystyle filter) in some time; they seem to be all ecore. If the PF48 goes ecore I will definitely go full time to Wix (Napa) or Purolator. I just don't trust the ecore design.

 

Take a look at these pictures for what I am describing about the ecore.

 

 

[newdude]

True the Ecore design is basically a cost saving measure, it doesn't affect the basic functions of a filter.

 

 

I will be the first to admit that I don't have an engineering degree, but with the plastic center cage design of the ecore filter, there are large gaps where the filter media is not supported. It has been reported that these large gaps in the ecore cage can allow the poorly supported filter media to rip.

 

The good news for now is that I can still find the PF48 filters for the 900 series trucks in the traditional metal endcap/center tube design. I haven't seen a PF46 (old bodystyle filter) in some time; they seem to be all ecore. If the PF48 goes ecore I will definitely go full time to Wix (Napa) or Purolator. I just don't trust the ecore design.

 

Take a look at these pictures for what I am describing about the ecore.

 

 

Either switch or buy a bunch of Delcos lol. I don't think they will change the 48 to E-Core any time soon. I did some quick searching and it does appear that all of the old design filters are still made, but are just labeled Classic. I will have to try and pick one up soon and take a look.

[foghorn23]

 

Either switch or buy a bunch of Delcos lol.

 

 

 

Currently using a Purolator Pureone. Used Delco on all previous oil changes. It's all good.

[jdelrizzle]

Hold on now I have a 2011 Sierra and the owners manual says nothing about dexos it does how ever mention gm6094m, but I haven't used any oil that isn't on the gm dexos list, the back of the valvoline oil container says dexos approved. So what's going on?

[STINSAN3]

I use Mobil-1 & ACDelco filter.

[CKNSLS]

True the Ecore design is basically a cost saving measure, it doesn't affect the basic functions of a filter.

 

 

I will be the first to admit that I don't have an engineering degree, but with the plastic center cage design of the ecore filter, there are large gaps where the filter media is not supported. It has been reported that these large gaps in the ecore cage can allow the poorly supported filter media to rip.

 

The good news for now is that I can still find the PF48 filters for the 900 series trucks in the traditional metal endcap/center tube design. I haven't seen a PF46 (old bodystyle filter) in some time; they seem to be all ecore. If the PF48 goes ecore I will definitely go full time to Wix (Napa) or Purolator. I just don't trust the ecore design.

 

Take a look at these pictures for what I am describing about the ecore.

 

 

 

Ok=so out of hundred of thousands of filters - this guy found one that failed. You have no idea what your filter looks like inside unless you cut it open. There are many filters out there with the ecore design. I don't believe one minute REPUTABLE oil Filter companies would leave themselves open to the liability question if this design had widespread failure as shown. Case in point is Fram (low end) filters, everybody says how lousy they are - but there ARE NOT to the best of my KNOWLEDGE widespread failures.