6.7L Cummins Forum

My light came on at around 4300k. I called the dealership and was a little pissed that I already had to change the oil. Talked to the servicemanager and he stated that it is because of the new EPA restrictions. In order to not use UREA like Ford and Chevy, the oil system burns the Sulfer etc. which meanas you have to change the oil more regularly, well at least your truck will tell you that you do. The Service Manager stated it would not hurt it to wait until 7500k to change the oil.

On a similar note, Dodge is selling Oil changes if you pay for them in advance. I bought 24 oil changes at 23.99 a pop. Paying $570 up front sucks, but well worth it in the end. You cant buy the oil and filter for that price. Now I will just take my truck in every 3 months to have it changed.

I have 3150 miles and have not seen the oil change indicator yet. I changed the oil at2500 miles and shortly after, my uncle (who is an amsoil dealer) gave me a by-pass filter system and convinced me to try their product. At 3000 miles, I changed everything again and used amsoil 15w40 with my added filtration system. With just under 200 miles on the new oil, it looks like I just poured it in. Also, I'm dpf deleted and the egr is unplugged with a smarty jr progammer so I'm not getting the recirculated soot and excessive backpressure that affects our engines oil. However, any additional oil filtration would be a huge benefit to any diesel engine.

Your oil will look clean with bypass ONLY and no egr/dpf and post inject process happening. If you have the smog system active, oil will turn black nearly asap. With that said, just because oil looks dirty, does not mean the oil is bad and has to be changed. Just mean the oil is doing its job, otherwise that dirt would be on the parts.

With a proper bypass filtration system installed, going 10K miles on regular dino oil with lab tests to confirm will be no problem at all. I have seen lab result at 20K miles and the oil still meeting all specs and smog fully operational.

$24.00 per oil change that requires 3 gallons of oil and filter, something is wrong. That is TOO good of deal to be true. What filter and brand of oil are they using ?

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I agree 24 bucks in way too cheap. I only installed the by-pass system because it was free but I will change the oil annually, need it or not. I will probably drive 3k to 5k per year (towing a few times a year) but the truck sits alot ,sometimes a week or two at a time so moisture is my concern. I get my oil products at cost so an entire oil change including both filters will be around a 110 bucks.

I drive a duramax at work and we service them at 7500 miles or so and at 69987 miles its done well. Our company uses a mid grade oil and very good filters. My last mopar filter from the dealer was 10.95 so it probably costs them 5.00 or less. The stealerships buy bulk so I bet they pay less than a buck a quart so the 24 dollar oil change is very possible.

My 09 has 16000 miles on it, I used to have the dealer do my oil changes they were free. I would have the same results, 3000 or less miles the overhead would indicate time for service. Being a mechanic I got to thinking these regen engines swallow all the crap back into the crankcase to make the beuracrates happy. This makes the oil look like the stuff that comes out of a nonturbo charged engine. Still thinking to my self I thought how can any one possibaly get all that mung out of the crankcase with a 20 miniute oil change like the free ones that I was getting from the dealer. They were installing a mopar filter and using pennzoil 15w40. I have always used Shell Rotella it has things in it that keep the carbon deposits that these engines swallow suspended in the oil witch allows the filter to trap them up. I use a Hastings filtr, this past oil change was the first one to test my theory. I dumped the oilpan when it was hot enough to burn my hand, did this in the late afternoon.I left her on the jactstands with the drain plug out intill the next mornning, Iam pushing 5000miles on this service, no overhhead reminder yet. Bottom line Quality oil and a quality filter, and let er drip out for hours. Just my thoughts.