2005 Dodge 2.7

[troyb43]

Getting ready to do an oil change for a friend later this week and she has a 2005 Dodge with the 2.7 and 140,000 miles on it. I know little about the engine, except she said it uses some oil, has no leaks, and what I have read about some earlier models of this engine having issues. Anyone have any good advice?

 

[NHGUY]

Earlier 2.7s were known as the sludgemasters.Many cars lost engines due to lack of oil flow.I would use a Pennzoil motor oil of some kind,with high detergency and never cease using it,and keep the fingers crossed.

 

[SwampSurvivor]

Typical Chrysler garbage engineering is about it.

Apparently by 2004 the sludge issues were resolved. I'd stick to a high detergent oil and frequent filter changes for sure.

 

[440Magnum]

One of Daimler's ideas, designed at the absolute insistence that Chrysler needed a "high tech" small v6 with a shorter bore spacing than the venerable pre-Daimler 3.3/3.5/3.8 v6 family. It was thrown in the dumpster as soon as Daimler was out of the picture, and that was at least 10 years too late.

For a while there one of the most popular engine swaps in Chrysler history was to deplete the junkyards of running "low tech" 3.2L engines to drop in place of failed "high tech" 2.7s. A few webstores offered kits to help do that swap. The 2.7 had a ton of early issues with timing chain guide and tensioner failures, high oil temperatures, sludge formation, you name it. It went on to return decent service if pampered with synthetic oil and frequent changes (after some hardware re-designs circa 2002). Obviously this one has made it to 140k which is better than the early ones did, but you don't really know its history. Don't go after it with additives, but use a quality filter and a good synthetic oil. PP, PU, M1, etc.

 

[accent2012]

I wouldn't touch it. I've seen them [censored] out all of a sudden. You wouldn't want to be in a position where you were the last person to have worked on the car and it all of a sudden [censored] out and the blame falls on you.