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  #1  
Old 06-01-2016, 06:43 PM
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My First SRT Oil Change

Having run out of my free SRT gift oil changes, I just finished my first SRT oil change "selfy".

I am not a "newby". I've changed oil on all my previous vehicles, but I have a few questions for those who may have run across some curious things.

1) While trying loosen the drain plug I found it to be excessively tight. I could not break it loose with 1/4" drive ratchet - and I am no light-weight. I had to use a 16" 3/8" breaker bar, and even then it was tough. I'm guessing the dealership used an air wrench on it. I see the oil pan is cast aluminum, but I would be very afraid of stripping it. I tried to find a torque spec for it but couldn't. Is there an on-line field service manual for a 2014 SRT anywhere?

2) Seems to me all other oil changes had a Teflon washer on the drain plug, but not the SRT. Can anyone confirm?

3) Everywhere I've read, they spec oil change with filter requires seven quarts. I put in 6.5 quarts and found the dipstick read overfilled (guessing by 1/2 quart) - even a day later after several trips. Anyone seen this either?

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  #2  
Old 06-01-2016, 07:11 PM
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Check and make sure you have the correct dipstick, they are defective in many situations. Reguardless of your model year make sure you have the current revision number. Example the 5.7s are a quart over filled when the dipstick reads correct. Below is the link on the 6.4 TSB

http://wk2jeeps.com/tsb/tsb_wk2_0901115.pdf
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Old 06-01-2016, 08:04 PM
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Re: My First SRT Oil Change

Silver, thanks.

I checked the part number and that is the case - the wrong dipstick.

You know I had checked the website:

Jeep Grand Cherokee WK2 - 2011-2016 Grand Cherokee Service Bulletins and Recalls

and this TSB was listed for 2015 WKs so I didn't think this applied to my 2014 and never read it. The TSB further clarifies as applicable to SRTs built on or before 6/12/15, which my 2014 was. So off to the dealership I go.

I'm just reflecting on the previous dealership-performed oil changes and me running on 6 quarts of oil for 2.5 years - including a cross-country trailer tow. That would go a long way in explaining the 245 F oil temps thru Texas.

This is what these forums are all about. Thanks much.
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Old 06-01-2016, 08:14 PM
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Great glad that helped. On my 5.7 i ran around over filled by 1 quart for a while because the dipsticks were wrong. On the bad dipstick it took 8 quarts to get it to full instead of the recomended 7.
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Old 06-01-2016, 09:15 PM
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Re: My First SRT Oil Change

Quote:
Originally Posted by ufjaz View Post
...
1) While trying loosen the drain plug I found it to be excessively tight. I could not break it loose with 1/4" drive ratchet - and I am no light-weight. I had to use a 16" 3/8" breaker bar, and even then it was tough. I'm guessing the dealership used an air wrench on it. I see the oil pan is cast aluminum, but I would be very afraid of stripping it. I tried to find a torque spec for it but couldn't. Is there an on-line field service manual for a 2014 SRT anywhere?

2) Seems to me all other oil changes had a Teflon washer on the drain plug, but not the SRT. Can anyone confirm?
Friggin' ham-fisted old school (or newbie who has no pride) mechanic...just can't get away these days with "snug it", "crank it"...with the composites, aluminum and other highly engineered material/application combos bolts and fasteners really do need to be properly torqued....25 ftlb is the spec for our 6.4l SRT and it has a red rubber o-ring washer that I bet they lost and just figured "Eh, I'll just crank it, don't need no stinkin' washer"...

Quote:
Originally Posted by ufjaz View Post
...
3) Everywhere I've read, they spec oil change with filter requires seven quarts. I put in 6.5 quarts and found the dipstick read overfilled (guessing by 1/2 quart) - even a day later after several trips. Anyone seen this either?
Thanks Dan for posting the TSB and I thought that might be OP's problem on level but if OP typed correctly it is actually the opposite and if he does nothing else except install the correct dipstick he is now gonna read even more over-filled. The incorrect "AC" dipstick as we no know, the one in his rig now, is about 1/2" shorter than the correct "AD" one so it gives a false lower reading than actual. So using the correct "AD" dipstick will turn his "about 1/2 qt" overfill into about 1qt ish overfill in truth.

OP, you say you are guessing at 1/2 qt over....what distance over top hashmark is the oil at? 1/8", 1/4" ?
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Old 06-01-2016, 09:41 PM
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Re: My First SRT Oil Change

The current dipstick in my 6.4 ends in "AA". The subject service bulletin recommends replacement with the "AB" dipstick.

I'm guessing the "AC" and "AD" you mentioned are different dipsticks. Is there a whole range of levels for the 6.4?

I estimate that the "safe" range on my "AA" dipstick is about 1/2". My current oil level is about 3/8" over the safe range.


Also, thanks for the heads up on the red washer. Where did you get the torque spec?
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Old 06-01-2016, 09:54 PM
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AD is the correct revision on the 5.7 dipstick. Funny something as simple as dipstick has been revised 3 times lol
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Old 06-01-2016, 10:02 PM
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Re: My First SRT Oil Change

Quote:
Originally Posted by ufjaz View Post
The current dipstick in my 6.4 ends in "AA". The subject service bulletin recommends replacement with the "AB" dipstick.

I'm guessing the "AC" and "AD" you mentioned are different dipsticks. Is there a whole range of levels for the 6.4?

I estimate that the "safe" range on my "AA" dipstick is about 1/2". My current oil level is about 3/8" over the safe range.
Oops, my bad...I had to address this issue with my '14 Summit 5.7l too so I incorrectly used it's AC/AD part #'s....

You are correct, AA is bad/short and you want the longer AB one for the 6.4l SRT.

Yes, the hash mark range is about 1/2" on both but that read range is about 1/2" too high in the oil when inserted (reads lower than is should). TTBOMK, it is generally accepted that the 1/2" op/read range is about 1 qt so your 3/8" over the top of the that range is approx 3/4 qts. Which means that the correct dipstick, if you do nothing else, should read 1 and 1/8th inches HIGH, or about 1.25 quarts high.

I know you are not a newb so these are just things everyone still does when they are in a hurry, etc..I don't know if you didn't get all the oil out from not having the oil warm, or drove it to warm it but didn't wait long enough for it to make to the pan, or didn't let it drain long enough or having the nose parked up/downhill in your driveway (oil pools in a few nooks), etc...who knows, the only unexplained diff is .25 qt so meh, no worries....replace the dipstick and have it parked level. Take out new dipstick to do the pre-check wipe then see what your true level is with the new dipstick and drain 1/2 and see how much it comes down on stick and go from there....
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Old 06-01-2016, 11:45 PM
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Re: My First SRT Oil Change

Since I put 2500 miles a month on my new SRT I found this deal on eBay from Kings Chrysler Jeep in Ohio. Just keep the dealer receipt they send you and note the mileage and date changed on the receipt. A picture of the reset oil life and mileage wouldn't hurt either. 1st oil change at dealer ended up with oil spilled on engine and drips on my garage floor. All for almost $100. Thanks but no thanks. I'd rather do it myself and wipe up good. ImageUploadedByJeepGarage1464842571.606970.jpg
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Old 06-02-2016, 01:17 PM
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Re: My First SRT Oil Change

GoPlzGo, where can I get the torque specs for my SRT?


I used a black Mopar filter, which is what the previous dealers used. Is the white SRT filter something special?
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Old 06-03-2016, 06:04 PM
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Re: My First SRT Oil Change

Quote:
Originally Posted by ufjaz View Post
GoPlzGo, where can I get the torque specs for my SRT?


I used a black Mopar filter, which is what the previous dealers used. Is the white SRT filter something special?
some specs here:

Jeep Grand Cherokee WK2 - Maintenance information and schedules

The black filter is the stock oem one and is more than adequate. If you will be tracking it and truly running it sustained high rpm, cornering, etc.. then the SRT white filter is supposedly better...

direct quote from drivesrt.com:

"When an SRT owner takes their vehicle to a driving event with the specific intent of exploring the far reaches of the performance envelope, they can rest assured that the 6.4-liter HEMI engine will sustain proper oil-pressures in extreme cornering conditions. For track-day use, SRT engineers suggest using the SRT oil filter (part number 05038041AA). Originally designed for Viper applications, it works great with all Chrysler V8 engines. The SRT filter features a higher differential pressure bypass valve and reduced pressure loss across the filter element."

from an SRT Engineer chat session:

"The SRT Viper filter flows better than the stock purolator filter and requires a higher differential pressure to bypass the filter at cold starts and high demand (Meaning the SRT Viper filter bypass stays closed more often and filters more oil). Both filters will work on the 5.7/6.1/6.4."
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Old 06-05-2016, 08:56 AM
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Re: My First SRT Oil Change

Quote:
Originally Posted by tpe22 View Post
Since I put 2500 miles a month on my new SRT I found this deal on eBay from Kings Chrysler Jeep in Ohio. Just keep the dealer receipt they send you and note the mileage and date changed on the receipt. A picture of the reset oil life and mileage wouldn't hurt either. 1st oil change at dealer ended up with oil spilled on engine and drips on my garage floor. All for almost $100. Thanks but no thanks. I'd rather do it myself and wipe up good. Attachment 68822
I work right next to this place, I walk in and just ask for the Ebay Price and get it! no shipping!
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