OTB=
Oil
Tire
Battery
It never ends well on any forum.

 

mobil one full syn 10w30...mobile one filter. expensive, but like my grandpappy always told me "son, oil is cheap insurance"

 

Conventional motor oils are made from crude oil which has been pumped from the ground and then processed in a refinery to create a base oil. Additives are then mixed into the base oil to change the viscosity, protection properties and heat breakdown levels of the oil.

Synthetic oil is also created in a similar manner to a conventional engine oil, using a base oil combined with a series of additives. The difference lies in the fact that synthetic motor oils are created utilizing a specially "synthesized" or manufactured, base oil where the size of the oil molecules are all of an ideal weight and of a consistent size. While a conventional motor oil, despite the refining processes, is made up of different molecule sizes which are mixed together, along with various waxes and impurities, a fully synthetic oil is made to provide a much purer base oil, with less waxes and with a uniform ideal particle size to help increase the oils viscosity level

But I'm by no means a guru

 

Ok so oil, lately I've been running Mobil 1 high mileage fully synth with a mobile high capacity filter. Its great and you feel the difference when you first change it, but as for oil brands i hear that the worst for sludge are pennzoil and castrol but idk how true that is

 

So it's impossible to damage your engine by running synthetic?

 

From what I've heard if you've never run full synthetic oil in your car you aren't suppose to just change it up and use it. I think it has to do with possible sludge buildup and a synthetic oil will loosen it up fast and damage your engine. This being what I've heard though. Starting with a semi synthetic wouldn't be so bad though

 

I use Quakerstate 10w-40 with a Mopar M90 filter, change it every 6000 miles, more or less. 3000 mile oil changes are a thing of the past and is a waste of money.

 

Not true. You can run a full synthetic oil no matter how many miles the engine has on it, in any gas engine, will not knock any sludge loose.

 

Synthetic = waste of money IMO. Are jeeps are made to use conventional. Like I said before, I ran Royal Purple for awhile and noticed no improvements or change besides the price difference. Using synthetic on track cars is a different story.

 

The differnece, and why people say its "bad" which is false, its because syn oil runs cleaner, and has cleaning properties in it. Conventional motor oil has waxes in it, which over years build up and create plugs for small oil leaks. the reason people say syn oil is "bad" is because it will clean and remove the sludge build up and expose the small leaks.

agreed, changing oil every 3k is a waste of money. With conventional, i would go about 5k and syn, i would go about 7k. Some of the new diesle cars call for 25k oil changes! BUT, this all depends on how your running your motor, if your spinnging wheels in mud, on rocks all the time, its gonna run hot, and break down the oil faster

very true with track cars. Syn oil has a break down temp around 400* F. if any of our jeeps get that hot we got a serious problem!!! But with that said, when it is running hot on the trails, the oil wont be at the extreme end of it temp breakdown.

Your not gonna "tell a difference" from running syn or conventional engine oil like you would perfomance tuning or a turbo or maybe even 94 octane from sunoco! Like i said before, oil is cheap insurance

 

Have you ever tried any other oils to compare to the Rotella?

I am considering Rotella for my two XJ's and looking for feedback from users of Rotella.

Thanks

 

........coming from the person who says "ARE" instead of "OUR".

 

Wreaks havoc on carbon and other buildup. Low compression after switching my trail rig that I didnt want to spend money on fixing.

 

I seen an ad for RoyalPurple yesterday, and they claim more horsepower and torque just by using their oil. I call BS on that claim.

 

I'm not saying this is true for Royal Purple but more than likely they are just like any brand that makes bolt-ons like exhaust and intake. They take a vehicle in very poor condition, and they put their product on it. Example: K&N, they go grab a vehicle with an air filter that is pretty close to totally clogged. They dyno it, then throw in their filter and dyno it with that. There's your "gain".