What Oil and Oil Change Interval for Your K2?

[Rewillia]

since I'm a low mileage driver, its every 3,000 miles irrespective of what the odometer reads or the owner's manual recommends and at least once per year.

[high country]

Change intervals will depend on crankcase capacity as well as what kind of oil you use, small engines with 4 quarts of oil will need a change before a v8 sporting 8 plus quarts in the pan. Your manual will tell you when service is due, as a rule of thumb I change at every 5-6000 miles even when my OLM says 50 percent. Of course everyone has their own opinion and after all it is your truck so treat it like you want.,

[wurgs]

In my last 2 trucks I went 5500-6000 miles using Mobil1 and AC Delco filters which was about 30% left on life meter. The oil level was only down about 1/2 quart so will stick with that. I will start doing that after my 4 free ones.

[gone_fishing]

 

You might reconsider that filter, based on what the crowd is saying on Bobistheoilguy.com

The Wix or Champ or relabled (Mobil, K&N, NAPA Gold, etc.) are the ones that seem to have the most consistent following on BITOG. They get pretty deep over there.

 

I stand corrected. The reviews on the Ultra are very good.

 

Yes I hang out at BITOG also and the Fram Ultra's appear to be growing in popularity. They offer excellent filtration with synthetic media and appear to be solidly built. I took one apart few months ago: http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3534172/Cut_open:_Used_Fram_Ultra_XG10#Post3534172

 

I also cut open an ACDelco PF63. It also appeared to be well built: http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3433874/Cut_open:_ACDelco_PF63_with_6,#Post3433874

 

Quite a few Purolator filters have shown up on BITOG in the last year or so with tearing issues. That would be the one filter brand I would stay away from (at least until Purolator fixes the problem).

[txchevy4ever]

Hastings... the sleeper of premium filters...

[Spurshot]

 

Yes I hang out at BITOG also and the Fram Ultra's appear to be growing in popularity. They offer excellent filtration with synthetic media and appear to be solidly built. I took one apart few months ago: http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3534172/Cut_open:_Used_Fram_Ultra_XG10#Post3534172

 

I also cut open an ACDelco PF63. It also appeared to be well built: http://www.bobistheoilguy.com/forums/ubbthreads.php/topics/3433874/Cut_open:_ACDelco_PF63_with_6,#Post3433874

 

Quite a few Purolator filters have shown up on BITOG in the last year or so with tearing issues. That would be the one filter brand I would stay away from (at least until Purolator fixes the problem).

 

Funny, I had just read those two posts on BITOG a day or two ago and didn't put you together with those threads. LOL.

 

The fact is; I just bought a few old style PF63 filters based on your post over there.

[Coppertone]

Change intervals will depend on crankcase capacity as well as what kind of oil you use, small engines with 4 quarts of oil will need a change before a v8 sporting 8 plus quarts in the pan.

What data did you use to come to this conclusion?

[Rock1500]

So I have a car so I don't drive the truck as much as I would. So I bought the truck in Feb '14 and I only have 7200 miles on it. I have 4 free oil changes in the first 2 years. So my first oil change was at 2K. I told in the past, to always replace the oil at the first 2K mark just to get any debris out as the engine breaks in. I replaced the oil again 4K miles later. Since I do so little miles on my truck and I have 1 year left and 2 free oil changes. I am thinking of doing one more oil change in August/Sept and then the last one in February. After that, I will do my own oil changes, but I am not sure at what interval I will use or oil I will use. But i am reading your posts and getting a clue.

[Coppertone]

I told in the past, to always replace the oil at the first 2K mark just to get any debris out as the engine breaks in.

 

This is why engines have oil filters.

[high country]

[gone_fishing]

Change intervals will depend on crankcase capacity as well as what kind of oil you use, small engines with 4 quarts of oil will need a change before a v8 sporting 8 plus quarts in the pan. Your manual will tell you when service is due, as a rule of thumb I change at every 5-6000 miles even when my OLM says 50 percent. Of course everyone has their own opinion and after all it is your truck so treat it like you want.,

 

Yes a larger crankcase capacity can help with extended OCI's but it depends on the motor and the operators driving habits. Engines that are short tripped consistently (without getting out on the highway often) don't get the oil up to full temp. This can issues with high fuel dilution in the oil (which can result in lowered viscosity).

 

I used to have a 2005 Honda Accord with a 2.4L 4 cylinder. It held 4.5 quarts of oil with filter. Honda's recommend service interval for normal driving was an oil change every 10,000 miles (or 1 year..which ever came first). This was with conventional 5W-20. That motor was real easy on oil.

[silverWS6]

I don't trust the OLM thing on the truck neither did I on my Cruze. I do 5000 and use Pennzoil Platinum with a Mobil 1 filter. I'm about to do the change over to Amsoil on my car first and then the truck too.

[high country]

I have used Signum for my fleet oil analysis,

[Spurshot]

I don't trust the OLM thing on the truck neither did I on my Cruze. I do 5000 and use Pennzoil Platinum with a Mobil 1 filter. I'm about to do the change over to Amsoil on my car first and then the truck too.

 

GM probably spent millions to develop and refine the OLM. It is as valid as any manual that has a list with a recommended oil change interval. If you don't trust this computerized program, why would you trust EFI, Anti-skid, BCM, etc., or any other program in the truck?

[thewhitestallion]

I use Mobil 1 with an AC Delco filter. I do not know all the specifics that go into oil's however I am sure GM has done at least some research in oils and what oils run better in their motors. GM puts Mobil 1 oil and AC Delco filters on their 100k Corvettes so I figure it should be good in my truck. Also I have seen cut outs of different oil filters one being an AC Delco and the inside of the filter had more layers than all the others but the worst one appeared to be Fram so I tend to stay away from them, albeit that was in a GM Certified Technician class that a friend of mine was taking and I was just their visiting.