[cdn96zj]

About to perform my first oil change on my '06 Liberty Renegade (3.7 L).

Anyone have thoughts on regular oil vs. sythetic? Is it a real benefit to use synthetic given the increased cost?

Any input would be appreciated.

[CRD4Liberty]

Let's see Amsoil is changed every year or 25,000 miles, so you change it 8 times less possibly. You only buy 2 filters instead of 8. The oil itself lubes and cools much better than dino oil. Unless you have leaks you'll not need to add oil except at the filter change to top it off. My rig before last on Amsoil went 277,000 miles with no engine work, started as fast as you could turn the key, and ran for years after I sold it. My son and his wife drive my last rig with 200,000 miles and going strong. Looks like the math is big time in favor of synthetics.

[rmcalis]

Originally Posted by CRD4Liberty

Let's see Amsoil is changed every year or 25,000 miles, so you change it 8 times less possibly. You only buy 2 filters instead of 8. The oil itself lubes and cools much better than dino oil. Unless you have leaks you'll not need to add oil except at the filter change to top it off. My rig before last on Amsoil went 277,000 miles with no engine work, started as fast as you could turn the key, and ran for years after I sold it. My son and his wife drive my last rig with 200,000 miles and going strong. Looks like the math is big time in favor of synthetics.

Looks like the math is in favor of buying an overpriced product from a pyramid scheme.

I bet you'd be glad to set him up with a distributorship.

[CRD4Liberty]

No I wouldn't, never have been a dealer. Just think a product that will last 100,000 miles per oil change if you install the inexpensive bypass filter is a pretty good deal. You don't have to go thru the stuff you mentioned with Amsoil for some time now, you got to keep up. They came out with synthetic everything in lubrication first, they back their product to the hilt, what else do you want?

[dthorpe]

At one time, Amsoil was a blend of synthetic and regular oil. Problem is, they didn't tell you how much synthetic was in it. Could have been 1%! At least Mobil 1 has always been 100% synthetic.

[Silver Streak]

I would suggest you use synthetic oil. There are only positives, the only downside is initial cost for the oil. It cost more to purchase the oil when you have to do an oil change, but then the oil lasts a lot longer as well. Mobil1 offers oil with a 15K mile oil change interval now, and when compared to mineral oil, it is actually cheaper over that fifteen thousand miles. Factor in that synthetics do everything better than mineral oils, there is little reason to stick with the older technology. The additive package can be adjusted much more favorably, and there are said to be very very few downsides to synthetic oil additive packages.
Mobil1, Valvoline, Penzoil, Kendal and others make really great synthetic oils now. Do a little bit of study on the oil company websites; see what they publish about their motor oils. Take your time and choose the best one readily available at a price you can live with. Many people are passionate about motor oil brands, similar to how some act about their favorite fishing lures. I have never come across Amsoil in a store for sale, and i guess now i understand why. I did not realize it was something you sell like Amway or whatever. Valvoline and Mobil1 are both real good oils, as are Penzoil and Kendal and several others. Look closely at the test results they have published, and inform yourself about this subject. Get a good filter as well, not the three dollar versions; get a Wix (NapaGold) or buy the original Mopar filter from Jeep. Both of those are top shelf products.

Silver Streak
`05 CRD Sport

Originally Posted by cdn96zj

About to perform my first oil change on my '06 Liberty Renegade (3.7 L).

Anyone have thoughts on regular oil vs. sythetic? Is it a real benefit to use synthetic given the increased cost?

Any input would be appreciated.

[CRD4Liberty]

I can think of 3 stores here in the Pac. NW where Amsoil is on the shelf, and has been for many years. One long time popular store is GI Joe's. The program has been in existence for 15 years at least.

[CRD4Liberty]

Amsoil never, I repeat never was a mix of dino and synthetic, they sell a Para-synthetic for people who don't want the full synthetic and they have never hidden anything. From day one any info I wanted was given over the phone or sent in published form at my request. They have always sent laboratory verified info with specifics, far more than any other oil company I've done business with has. To this day you can get any info you need from them. They have been the most straight up, customer protecting, product backing company I've ever done business with. Again I have no affiliation in any way with the company.

[weantright]

"Let's see Amsoil is changed every year or 25,000 miles, so you change it 8 times less possibly. You only buy 2 filters instead of 8."

You still should change your filter at regular intervals otherwise dirt builds up!

[Ralphh]

I've got a question...25,000 looks great on paper, But what about the known byproduct of cumbustion..acid, is'nt that what turns you oil black and lowers it's ability to lubricate? Would'nt it keep building up, eating away at the engine? I don't think 25,000 is possible or realistic, amsoil or not, I just don't think it could be done with out some excessive wear/damage for the long term. 7000 miles is about as far as I'm willing to go with Mobil 1, then it's getting changed...

[tsuji]

id just go with castrol GTX. a buck a quart on sale and my jeep has been running it 138,000 miles with no problems.

[CRD4Liberty]

Ralphh,
I ran Amsoil 100,000 mile on the Amsoil bypass filter on a rig that I sold at 277,000 and still ran great. Amsoil and I'm sure other synthetics have a higher acid neutrizing level naturally as they aren't dino built. No sulfated ash, no need for 25% of the oil to be additives so that the lube oil doesn't attack your engine parts like the gaskets, etc. Amsoil naturally keeps you gaskets and other parts in like new condition, no engine sludge ever, no varnish ever,etc.

[homebudz]

Originally Posted by CRD4Liberty

Ralphh,
I ran Amsoil 100,000 mile on the Amsoil bypass filter on a rig that I sold at 277,000 and still ran great. Amsoil and I'm sure other synthetics have a higher acid neutrizing level naturally as they aren't dino built. No sulfated ash, no need for 25% of the oil to be additives so that the lube oil doesn't attack your engine parts like the gaskets, etc. Amsoil naturally keeps you gaskets and other parts in like new condition, no engine sludge ever, no varnish ever,etc.

Are you running amsoil in your crd?If so,when did you start using it? I just have a little over 1k miles on my 06 crd limited,and I'm thinking about using a synthetic oil once break in is complete.I don't know if will be amsoil,or another brand,like royal purple etc.

[Dauntless]

The CRDs come with Mobil 1 synthetic.

[GrandchampWJ02]

If you're gonna go 25,000 miles, you better check the level frequently. Granted its a new vehicle, but In every car I've had I almost always add more than I take out. Sounds pretty risky to me. Also, stick with synthetic. I see no drawbacks to using it, plus its not all that much more expensive IMO.