What would you recommend for a 2001 Chrysler Sebring with the infamous 2.7l DOHC v6? It has 67K and I have found some crud in the oil when I drain it. I am now using Mobil 1 5w30, and I don't know the OCI history prior to 62K, but I found a Walmart sticker. I'm considering Rotella 5-40 or Mobil 1 5w40 as I live in hot South Carolina. Thanks
oil for 2.7l sludge monster
- Thread starter sebring01
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First, you should Auto-rx the engine if you think it has sludge. Second, I would run a 30wt oil with a high ester content. I would use Redline, Synergyn. An alternative would be to use a 30wt diesel oil such as Amsoil S3000 or 30wt Rotella is you can find it.
Also take a look under the hood and check the smog plumbing. Replace the pcv valve and if there is a filter between the crankcase and the air filter system, get that one, too. When you do the ARX, buy a case of oil at someplace like Costco or an oil jobber, and some good filters like a Purolator prem plus. Then pick you favorite oil when done. It's a bit of work, but it's the right way to go, that is, start out with a clean motor and good oil.
JHZR2
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Everything posted here is good info...
change the PCV valve often. Its cheap.
Run an auto-rx interval.
My roomate's 1.8T GTI had a tiny bit of crud under the cap. I think he used whatever jiffy lube sold.
We've changed since to Mobil 1 0w-40, and its gone away (it wasnt caked on, the crud was loose), and the engine is staying clean.
Id go with Mobil 1 10w30, or 0w or 5w-40. The 0w-40 isnt as shear stable, so it may cause formation, but since Ive seen good results in my roomate's GTI, you might give it at least a thought...
Id run LC in it after youve done your auto-rx intervals.
Redline is a good option for sure! But, at 5000 mile OCIs, its pretty $$$$$. You might consider blending in 50/50 redline/m1 or something liek that, but Id highly suggest you use Terry's services to ensure that the resultant oil is still doing a good job in your engine.
Good luck!
JMH
change the PCV valve often. Its cheap.
Run an auto-rx interval.
My roomate's 1.8T GTI had a tiny bit of crud under the cap. I think he used whatever jiffy lube sold.
We've changed since to Mobil 1 0w-40, and its gone away (it wasnt caked on, the crud was loose), and the engine is staying clean.
Id go with Mobil 1 10w30, or 0w or 5w-40. The 0w-40 isnt as shear stable, so it may cause formation, but since Ive seen good results in my roomate's GTI, you might give it at least a thought...
Id run LC in it after youve done your auto-rx intervals.
Redline is a good option for sure! But, at 5000 mile OCIs, its pretty $$$$$. You might consider blending in 50/50 redline/m1 or something liek that, but Id highly suggest you use Terry's services to ensure that the resultant oil is still doing a good job in your engine.
Good luck!
JMH
All good info. Thanks. I changed the pcv valve right when I got it, and it was clogged and not functioning. I just can't believe how dark M1 has gotten after only 3000 mostly highway miles. I also have never seen crude-like dirt come out of an oil pan, even on cars with twice the mileage. I hope M1 will clean this out gently before TSHTF. So if you had to choose Mobil 1 10w30 or 5-40? Yeah...all we have here is Walmart.
Check out www.allpar.com. Good info there on the 2.7. These engines seem to hold up fine with full synthetic oil and 5,000 mile intervals. In SC I would use 10w30 due to the warm climate.
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