Synthetic Oil

SaboTron · 11-14-2006, 07:28 AM

I recently bought a 2006 Wrangler 4.0L (3500 mi) and am thinking of switching to synthectic oil.
Does this make a significant difference in engine life? How often do you change this oil? Best type to get? This would be the first time using this type of oil so please respond with any tips.

Thanks

James04TJ · 11-14-2006, 07:48 AM

You will get a million different answers to your question. I can offer the following facts that are hard to argue with: AMSOIL, Redline, and Royal Purple are very high quality synthetic lubricants made from PAO base stocks. Mobil1 is now formulated using Group III base stocks. Mobil1 is known to produce high iron wear in the Jeep 4.0L motor. The only way to determine proper drain intervals using a high quality oil is to perform regular used oil analysis.

Check out http://theoildrop.server101.com and start to make some of your own decisions. My personal decision has been to run AMSOIL 0w-30 in my 2004 2.4L TJ since new and AMSOIL 10w-30 in my V-8 CJ. I am currently working on a 10,000+ mile oil change interval based off of Used Oil Analysis from Blackstone Labs.

'B'wigstrailrig · 11-14-2006, 08:01 AM

Definatley put some more miles on it first to break in the motor properly. Ive heard this from others on this forum. Id say swap at 15K.

03jeeper78 · 11-14-2006, 08:39 AM

I switched at ~6mo/5k miles. I've been using Amsoil XL7500 5W-30 in the winter, and 10W30 in the summer changed every 6mo/5k miles. I haven't done any testing, I just change it every 6 months.

James04TJ · 11-14-2006, 01:37 PM

Quote:

Originally Posted by 'B'wigstrailrig

Definatley put some more miles on it first to break in the motor properly. Ive heard this from others on this forum. Id say swap at 15K.

No need. 3,000 miles is no problem to switch it over. Take a look at high-end euro cars. They factory fill with synthetic. When I am done rebuilding the extra 304 V-8 that I have it will be taking synthetic for it's first fill.

SaboTron · 11-14-2006, 03:14 PM

Thank you for the feedback.

I am going to do some more research, but right now I am thinking at 5k of going to Amsoil 10w30.

**Bigbob** · 11-14-2006, 03:43 PM

Quote:

Originally Posted by SaboTron

Thank you for the feedback.

I am going to do some more research, but right now I am thinking at 5k of going to Amsoil 10w30.

You can put Syn oil in a brand new engine with no problem. Many cars come from the factory with syn oil. Amsoil is a really good oil. But. It is not readily available. I wish they sold in in stores. I use the Mobil 1 products as you can buy them virtually anywhere.

Syn oil will run your lube functions better. In many cases the engine will run slightly cooler. But then again the dino oils they have today are really good products. The big advantage of syn oil is an extended service life as it does not break down as quick. I run mine as long as 7-8 miles in my car and pickup. On the Jeep it'll depend on my dust conditions. If you run in extreme dirt oil changes need to be more often. If you plan on running syn oil and changing oil every 3000 miles the usefulness of syn is wasted IMHO. Just go dino oil in that case.

hoseclamp · 11-14-2006, 04:02 PM

I ran dino Chevron 10w30 for the break-in on my 4.6L stroker, now I'm running Amsoil 10w30, from what I can tell it's a high quality group IV synthetic. Not the XL version, the high performance rated one, yellow/orange label, now looks like it's re-done to a white/bluish label. I'm running Amsoil for all lubricants, in all my vehicles. It's also readily available in my small town, so it's cheaper for me than Mobil, Castrol, or any other synthetics.

Always had great luck with Amsoil, no need to change. By the spring I'm installing my Amsoil Bypass filter system, should have a 10-11 quart crankcase capacity then, good for 20-25,000 miles.

hoseclamp · 11-14-2006, 04:02 PM

oops, double post.

SDDAVE · 11-16-2006, 05:55 PM

Alot of new vehicles come with synthectic in the motors from the factories, BMW, Mercedes Harley Davidson to name a few. I use Amsiol and like it.

tims97xj · 11-22-2006, 07:49 PM

Amsoil is the way to go! But then again, I am an Amsoil dealer....

bravo2376 · 11-26-2006, 03:38 PM

I'm switching to Royal Purple at about 5200 miles. I got a 4.7 so probably not to much of a difference, except in extreem coold weather, but it sure won't hurt it.

NY JeeP · 11-27-2006, 06:54 PM

Amsoil is great. I just switched about 6k ago. I got 88k on my 98 tj. Barely burned any oil. Check out their oil filters too and in JP magazine this month they feature Amsoil with new products.

James04TJ · 11-27-2006, 08:41 PM

Quote:

Originally Posted by NY JeeP

Check out their oil filters too.

Indeed the new EaO Oil Filters are very nice... 98.7% Filtering @ 15 Micron.

11-14-2006, 07:48 AM	#2
James04TJ Registered User Join Date: Jul 2004 Location: Maryland Posts: 1,851 Profile Gallery Classifieds My Jeeps	You will get a million different answers to your question. I can offer the following facts that are hard to argue with: AMSOIL, Redline, and Royal Purple are very high quality synthetic lubricants made from PAO base stocks. Mobil1 is now formulated using Group III base stocks. Mobil1 is known to produce high iron wear in the Jeep 4.0L motor. The only way to determine proper drain intervals using a high quality oil is to perform regular used oil analysis. Check out http://theoildrop.server101.com and start to make some of your own decisions. My personal decision has been to run AMSOIL 0w-30 in my 2004 2.4L TJ since new and AMSOIL 10w-30 in my V-8 CJ. I am currently working on a 10,000+ mile oil change interval based off of Used Oil Analysis from Blackstone Labs. __________________ 2004 TJ (Mine) 1984 CJ-7 Buggy Project (Mine)* 1977 CJ-7 (Hers)*2005 Nylint Crawler (The Kid's) RedCell Motorsports http://www.myspace.com/redcellmotorsports

11-14-2006, 08:39 AM	#4
03jeeper78 Registered User Join Date: Apr 2005 Location: Appleton, WI Posts: 1,167 Profile Gallery Classifieds My Jeeps	I switched at ~6mo/5k miles. I've been using Amsoil XL7500 5W-30 in the winter, and 10W30 in the summer changed every 6mo/5k miles. I haven't done any testing, I just change it every 6 months. __________________ '03 Bright Silver Metallic TJ Sport BSMCCEP Club Member #45 Stock: 4.0L I6:5-speed:3.07 gears:D35 with Trac-Loc:15x7 Ecco wheels:Dual Top Group Mods: 30x9.5 BFG A-T T/A KO's:JKS Quicker disconnects:Rock-It Man rocker guards:Jeep Medic oil pan/tranny skid:Kilby steering skid:Warn D30 diff guard:C4x4 D35 diff guard:Rusty's radiator guard:Skid Row LCA skids:SilverStar headlights and fogs:Hidden Hitch class III receiver:Old Realistic 40ch CB:2' Firestik II:Arizona Rocky Road tailgate antenna mount Next : Jeeperman rear bumper '06 Candy Orange Honda Shadow Spirit 750

11-22-2006, 07:49 PM	#11
tims97xj Registered User Join Date: Aug 2004 Location: Oviedo, FL. Posts: 12 Profile Gallery Classifieds My Jeeps	Amsoil is the way to go! But then again, I am an Amsoil dealer.... __________________ 2000 Volvo V70 XC SE 2004 Nissan Armada SE Off-Road

11-26-2006, 03:38 PM	#12
bravo2376 Registered User Join Date: Sep 2006 Location: Germany Posts: 34 Profile Gallery Classifieds My Jeeps	I'm switching to Royal Purple at about 5200 miles. I got a 4.7 so probably not to much of a difference, except in extreem coold weather, but it sure won't hurt it. __________________ [SIZE="3"][FONT="Comic Sans MS"][COLOR="Olive"]Bryan[/COLOR][/FONT][/SIZE] [FONT="Book Antiqua"][SIZE="1"][COLOR="olive"][COLOR="YellowGreen"]"Some people are like slinkies... Not really good for anything, but you still can't help but smile when you see one tumble down the stairs.”[/COLOR][/COLOR][/SIZE][/FONT]

11-14-2006, 03:14 PM	#6
SaboTron Registered User Join Date: Nov 2006 Location: Orlando Posts: 12 Profile Gallery Classifieds My Jeeps	Thank you for the feedback. I am going to do some more research, but right now I am thinking at 5k of going to Amsoil 10w30.