No, but the 4.0L straight 6 motor wont see any benefit, this motor works best on straight 30W Heavy Duty oil. It is basically a suped up tractor motor. Most can go 300k+ miles. So if you have the 4.0L save money on oil and buy Rotella and put your money into a better oil filter. So if your oil pressure drops to 0 at idle its probably a Fram or other cheap oil filter.
Yes you can. Contrary to a popular belief it does not hurt to switch between or mix synthetic and conventional oils.
No it is fine to switch back to regular oil.
The question is somewhat unclear, but if you're asking if it's okay to mix synthetic-blend motor oil with full-synthetic motor oil, then the answer is yes. However, it somewhat defeats the purpose of paying extra for full-synthetic oil. Full-synthetic oils lubricate better than conventional and blended oils, and are more resistant to breakdown. This doesn't mean you should go longer between oil changes, though. No matter how good the oil lubricates, it still gets contaminated with particles from the combustion process and needs to be changed. The advantage is that over a long period of time, full-synthetic oil's better lubrication will protect the interior of the engine from heat and friction better than conventional or even synthetic-blend oils. With all conditions being equal, the engine treated with full-synthetic oil will retain its original performance and efficiency longer than the same engine treated with the alternatives. How much? That's a WHOLE different question! Synthetic-blend oils take advantage of the superior lubricating properties of full-synthetic, but at a lower cost by blending full-synthetic oil with conventional oil. It is a slight improvement, but generally won't make a considerable difference in the life of your engine if you maintain it properly and change your oil regularly. Again, contaminants are the biggest culprits in engine deterioration, not cheap oil (usually, there are exceptions). Mixing synthetic-blend oil with full-synthetic won't hurt anything at all except for slightly downgrading the superior lubrication properties of the full-synthetic oil. Mixing in conventional oil is also acceptable, effectively producing a synthetic-blend oil. Just be sure to use the proper oil type as called for in the owner's manual.
Ful synthetic oil is the best oil to use, it wont hurt your car with 20 miles or 200,000 miles.
put him in first then switch him out so he doesnt get hurt put him in first then switch him out so he doesnt get hurt put him in first then switch him out so he doesnt get hurt
I use synthetic oil in my 2002 PT Cruiser, and it runs great! Synthetic costs a little more, but it actually better for your engine.
Both would hurt very bad , but i'd have to go with the switch !! :)
No. It won't hurt your truck...
NO, you will still have conventional brakes, but no ABS or TC.
You can use Synthetic oil at any time. You can even mix it with regular oil. Just be sure and use the correct weight.
Regular oil is recommended by Jeep. Edit: Correct, Jeep does not make a recomendation to use synthetic oil. However synthetic oil will not hurt the engine at all. The recommended weight is 5w30.
You can. It won't hurt, and could provide a few benefits.