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#2456240 - 12/07/11 08:07 PM 2012 RAM 1500 W/ HEMI
semihemi12 Offline


Registered: 12/06/11
Posts: 3
Loc: Louisiana
So I just brought an 2012 Ram 1500 with the 5.7 hemi. I was reading the owners manual and its stating that I should change my oil ever 8,000 miles but the service pple told me to change it ever 3,500 miles.So should I change it ever 3,500 or 8,000 miles? and its all hwy miles and i drive about 50 miles day. Also I was curious about the type of oil it called for, 5w-20? should i stick with that or should i go with 5w-30?


Edited by semihemi12 (12/07/11 08:08 PM)

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#2456245 - 12/07/11 08:10 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
Quattro Pete Offline


Registered: 10/30/02
Posts: 27873
Loc: Great Lakes
How big is the oil sump in this engine? Is this engine hard on oil?

If you want to do 8K mile OCIs, I'd feel more comfortable doing it with a synthetic 5w-20 instead of mineral 5w-20. Doing it every 3.5K miles is unnecessary, IMO, even if you're only using mineral oil.

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#2456257 - 12/07/11 08:18 PM Re: 2012 RAM 1500 W/ HEMI [Re: Quattro Pete]
semihemi12 Offline


Registered: 12/06/11
Posts: 3
Loc: Louisiana
Cant really say I only have 150 miles on the truck and I havent heard anything about the Hemi being hard on oil.

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#2456298 - 12/07/11 08:50 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
addyguy Offline


Registered: 09/08/05
Posts: 13567
Loc: Canada
With mostly highway driving, 8k will be possible on standard conventional oil. However, most here would opt for synthetic oil, which will do that much easier.
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#2456302 - 12/07/11 08:52 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
renegade_987 Offline


Registered: 04/07/11
Posts: 1499
Loc: Ankeny, IA
I think Quaker State Ultimate Durability full synthetic 5w20 would be ideal for 8K
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#2456309 - 12/07/11 08:54 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
sopususer Offline


Registered: 03/17/11
Posts: 343
Loc: High Country of Western NC
I've never owned a Chrysler product, but if I owned one of these trucks I think I'd stick with the 20 weight recommendation. I have read, but obviously haven't experienced, that the 5W-20 is best for the MDS system on the 5.7 Hemi.
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#2456324 - 12/07/11 09:04 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
Bryanccfshr Offline


Registered: 10/09/04
Posts: 5416
Loc: Durango, Co
Follow the factory recomendations. Your driving is easy I would do what the factory says and don't let the service department"salesman" convince you to change earlier.

If you were sitting around idling the truck all day at a jobsite, pulling a utility trailer with a skid steer on it and generally working the truck hard more times than not then you should listen to the shorter interval recomendation. Normal driving on the roads is not severe.
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#2456331 - 12/07/11 09:09 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
Quattro Pete Offline


Registered: 10/30/02
Posts: 27873
Loc: Great Lakes
Also, doesn't this vehicle have an OLM that tells you when the oil change is due? Or is it really a flat 8K OCI?
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#2456344 - 12/07/11 09:15 PM Re: 2012 RAM 1500 W/ HEMI [Re: Quattro Pete]
semihemi12 Offline


Registered: 12/06/11
Posts: 3
Loc: Louisiana
It does have one, which its never accurate and i'd never really trust the computer telling me to change my oil. and yeah its 8k flat

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#2456391 - 12/07/11 09:49 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
Merkava_4 Online   content


Registered: 01/30/07
Posts: 10683
Loc: Clovis, CA
You have to stick with 5W-20 in order for the Multi Cylinder Displacement system to work.

8000 miles is way the heck to long to go on oil whether it's highway miles or not.
Check the oil color at 3500 miles and if it's still light colored, keep going until 5000.

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#2456453 - 12/07/11 10:34 PM Re: 2012 RAM 1500 W/ HEMI [Re: Merkava_4]
Kuato Online   confused


Registered: 10/23/05
Posts: 3575
Loc: US...on the road again
Originally Posted By: Merkava_4
You have to stick with 5W-20 in order for the Multi Cylinder Displacement system to work.


+1; the MDS does require the Xw20. As to the change interval, go with what you are comfortable with, keeping within the mileage required in the owner's manual - for warranty protection.

I've always thought that keeping fresh oil in an engine is better; but there are those that will say that letting the oil "break in" is better. Go with what you're comfortable with.
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#2456464 - 12/07/11 10:40 PM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
Toto Offline


Registered: 02/10/10
Posts: 192
Loc: Michigan
[quote=semihemi12]So I just brought an 2012 Ram 1500 with the 5.7 hemi. I was reading the owners manual and its stating that I should change my oil ever 8,000 miles but the service pple told me to change it ever 3,500 miles.So should I change it ever 3,500 or 8,000 miles? and its all hwy miles and i drive about 50 miles day. Also I was curious about the type of oil it called for, 5w-20? should i stick with that or should i go with 5w-30?

You will want to use the 5W 20 as the owners manual states, if it were my vehicle I would go 4,000k and do a UOA at the very least do the OLM/8,000k/6 months which ever one comes first but still do a UOA $13.99 from Napa, $2.40for shipping and it includes a TBN and your questions will start to be answered with facts and less opinion.

Toto.
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#2456588 - 12/08/11 05:51 AM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
SteveSRT8 Offline


Registered: 10/10/08
Posts: 15961
Loc: Sunny Florida
It is complete nonsense to imagine that if you don't use 20w that mds will not work.

Baloney.

We've been hashing it out on the net since 04 and mds is not harmed in any way by heavier oil. Altered in operation, slightly delayed perhaps, but not harmed in any way.

Mds is actually very tolerant of oil weight.
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#2456590 - 12/08/11 05:57 AM Re: 2012 RAM 1500 W/ HEMI [Re: semihemi12]
NHHEMI Offline


Registered: 07/06/07
Posts: 5465
Loc: NH
Originally Posted By: semihemi12
So I just brought an 2012 Ram 1500 with the 5.7 hemi. I was reading the owners manual and its stating that I should change my oil ever 8,000 miles but the service pple told me to change it ever 3,500 miles.So should I change it ever 3,500 or 8,000 miles? and its all hwy miles and i drive about 50 miles day. Also I was curious about the type of oil it called for, 5w-20? should i stick with that or should i go with 5w-30?


Actually it is 8000 miles or 6 months; whichever comes 1st. Also, that is the absolute maximum Chrysler allows for. It isn't just 8000 flat as you have to take the time frame into account as well if you reach 6 months before the 8000. The manual actually says to go by the OLM but if it does not trip within 6/8000 to change it. The dealer with their 3500 is just trying to get business from you.

I have had a couple HEMI Ram's( 04 & 08 3rd Gen's so previous 5.7L - 345 HP not the 390HP like your 2012 )and I always just did 5000 OOCI's as it made it easy to remember. It was within the max limits allowed for and I also got some use out of my oil( 3/3000 is too short even for conventional these days ). IMO 5000 is a good OCI while under warranty regardless of the type of oil. However, if you want to run to that 6/8000 IMO use a synthetic. I am not a fan of conventional oils run past 5-6K.

Some on this site will tell you that you can run 30 weight oil BUT Chrysler wants 5W20 run in the 5.7L engines that have MDS. The MDS system operates using the oil( pressure )so IMO it is best to just stick with what the mfg says to run. Your 2012 1500 has MDS so stay with the 5W20. I would not advocate running a 30 weight while under warranty even if it would be ok mechanically( I personally disagree with those who make this claim ). Bottom line is you should follow the owner's manaul at the least while under warranty.

Nice truck. Hope you enjoy it.
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#2456591 - 12/08/11 05:59 AM Re: 2012 RAM 1500 W/ HEMI [Re: SteveSRT8]
NHHEMI Offline


Registered: 07/06/07
Posts: 5465
Loc: NH
Originally Posted By: SteveSRT8
It is complete nonsense to imagine that if you don't use 20w that mds will not work.

Baloney.

We've been hashing it out on the net since 04 and mds is not harmed in any way by heavier oil. Altered in operation, slightly delayed perhaps, but not harmed in any way.

Mds is actually very tolerant of oil weight.


No offense but you say this all the time yet you offer nothing other than opinion on it. Chrysler is specific about only using 20 weight. IMO I will go with what the mfg who designed and built the system says to do.
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