I just changed my oil, and it definitely took every drop of 7 quarts, but as frogger said, that does include what goes into the filter.

 

Following is out of an 2007 service manual...Hope it helps....





ENGINE OIL WITH FILTER

3.7L
4.7L (5.0 Quarts)

4.7L
5.6L (6.0 Quarts)

5.7L
6.6L (7.0 Quarts)

5.9L/6.7L Diesel Engines
11.4L (12.0 Quarts.)

For 3.7L/4.7L engines SAE 5W-20 engine oil is recommended for all operating temperatures. For 5.7L engines SAE 5W-20 engine oil is recommended for all operating temperatures.These engine oils improve low temperature starting and vehicle fuel economy. Refer to your engine oil filler cap for the recommended engine oil viscosity for your vehicle. Vehicles with 5.7L engines equipped with Multiple Displacement System (MDS) must use SAE 5W-20 oil. Failure to do so may result in improper operation of the Multiple Displacement System (MDS). Refer to Multi Displacement System under Starting and Operating for details. Refer to the engine oil filler cap for the recommened engine oil viscosity for each vehicle.

 

I would say that is your answer

 

I agree with moparman also. I think the oil system the dealer used for the bulk oil isn't reading right. I'd definately bring it up to the service manger. I changed my oil and filtera month ago and it took all 7 quarts and it was just below the full hot mark on the dipstick.

 

I've done my oil change on my 04 ram and needed 7 quarts to be at the highest level on the dip stick, on my 08 with a K&N oil filter and 5w30 synthetic oil, I need 7.5 quarts to be at the top mark, at 7 qts, I'm just a wee bit over half the safe zone.

 

The issue has to be the dip stick markings or the tube length. The engine was designed to take 7 quarts. The is only one oil pan, so that is not an issue. Since I'm getting old, haveto take the old oil to the recycling centerand my local service station (yea, a gas station that still does mechanical work) gives me a geat price on an Amsoil oil change, it gets done there. After filling with 7 quarts out of the bottle, it measured up at the fill line when warm. They suggested that an additional 1/2 a quart would be ok. That is incorrect. Over filling is a warning in every maintence manual I have ever read. With mass produced engines, the tube could have been inserted incorrectly and in your case maybe to deep. The dip stick cap could be off a half an inch giving the false reading.

From my NHRA days I know that a lower oil level increases horesepower and lowers elasped time. One the street, running a halfa quart low has been a trick to increasegas mileage sice the 70's. However, that means that you have to check the oil level more frequently, just like the olden days.

TwoZs, if you feel confortable with the 6 1/4 quarts, you will not do any harm, just check your oil level frequently, keeping it topped off if required.

Thanks for reminding me about the "good old days." My most successful campaign was in 1970 running a 1965 Plymouth in O/SA (O/stock automatic) running highconsisently 5 tenths over the national record which was good enough to own the local tracks in theNJ/NY area. Was even at the track when the frist unbeleivable dragster broke 200 mph in the quarter.

 

on mine if u put in 7 and ck right after u shut off it will show low, after it sits a while it will be right on the mark.

 

Mine fits 7 also...I just buy the 5 qt jug and 2 seperate quarts of penz platinumat wal-mart. Sometimes i'll get mobil-1 but a guy from my other forum has sent a virgin sample of both to Blackstone labs...penz platinum has better add packs according to blackstone.

 

Next time, do your own oil change and find out where everything is sitting. Just a though, but maybe the dipstick was installed incorrectly and this is why it it is reading wrong. Don;t know if that can actually happen, but never know.

 

Thanks for all the inputs and ideas. I certainly don’t have any confidence in this dealership…I’ll try talking to another one and see what they have to say about. I just don’t want to take a chance on damaging the engine by running it too low or high. I’ll let you know what I find out. I’m not sure if you can insert the tube too far since it has a mount bracket welded to the tube and secured to the engine. Does anyone have the length of the dip stick and tube? Here are mine: tube is 10 1/8” from the top of the mounting bracket to the top of the tube and dip stick is 38 7/16” from the tip to the bottom of the handle seat.

Thanks,
Jim