If you want to know about oil that really works, read the following PDF by the American Petroleum Institute. They are the people who set the standards for Diesel, gasoline, oils, lubricants, and related products. Their members drill for, pump out, refine, and produce the petroleum products we use. They work with the Society of Automotive Engineers [SAE] to design fuels to run autos, aircraft, and engine propelled vehicles.
These people are PhD and ScD level scientists and MS engineers who rely on real science and engineering, not marketing, to produce products that work in the real world.
How many complex chemical products have been engineered in someone's garage or kitchen since WW2? Motor oil is a complex chemical product and any scientist or company who can come up with a product that gives a scientifically proven 5% improvement in fuel economy, less friction, and lasts longer will become very rich. It hasn't happened yet and there are thousands of people working on it every day. Synthetic oils are the closest thing to it.
Would it be ok at use something like a slick 50 or dura lube on my new jk?
What are your expectations from using the oil additives? They shouldn't be necessary if you are using a major brand conventional motor oil that meets the requirements of Chrysler specifications for your vehicle.
Some get awed by the hype for additives, synthetics and high mileage products.
- additives are nothing awesome. They aren't miracle workers to repair/prevent engine wear. Your Owner Manual says not to use them.
- synthetics are nothing awesome either. They are great for extended oil change intervals. Major brand name conventional oils are partly synthetic already, containing a component of Group III based synthetic*.
- high mileage oils contain some enhanced additives to supposedly help with wear and leakage and may be a consideration for a high mileage engine.
- conventional oil, like Valvoline Premium Conventional oil, will work just fine and keep your engine going, likely long after your vehicle needs an engine. In fact Valvoline Premium Conventional Oil has a Pour Point of -42C (5W-30) which is better than Castrol Edge Synthetic at -39C.** Go figure.
Bottom line: Follow your Owner Manual and your engine will be the better for it. Stick with major brands, stay away from house brands with unknown/unpublished product data sheets (for comparison).
The third tier comprises what many in our industry refer to as conventional engine oil. Although today most of these so called conventional oils contain some level of Group III base oil (thus making then synthetic blends), most marketers do not market them as such. Instead, they are positioned and priced as conventional products.