So my JKU has gone to the dealer for oil changes since day one. 5w20 is what is in it non synthetic. I want to change to synthetic.. I have 89000 miles on my 2010!

Can this happen?

 

Yup no problems at all. Just keep using the synthetic from here on out.

 

Awesome! Switching to royal purple!!! We get it cheap at the shop!


What the life on synth? The dealer says change what I have every 3k miles

 

...0w for less wear and tear at start up.

 

Have heard all different numbers, but I switched to synthetic and figure 5k miles is a good number. Some say you can go longer, but I do mostly stop and go so that works for me. Just my

 

I agree, about every 5-7k or at least once a year (whichever comes 1st). Also depending on how much time you spend on the trails, I tend to change mine after about seven days on the trails. Granted seven days is normally spread out over about 3k road miles.

Oil Changes are cheaper than engine changes lol.

 

I figured about 5-7k. Did my first change at 5k. I'm at 10,400mi and my synthetic still looks and smells clean. I heard that the light doesn't come on for the pentastars until around 10k bit that's waaaaaaay too long for me. I'm now wondering maybe at 8k for the oil change and 4 k for a filter change? Any thoughts?

 

Show them your owners manual that lists 6k miles or 6 months...

 

going from dino oil to synth???










*sorry, i couldn't resist....

 

Does your JK burn any oil?

I'm at 75k, and burn about a quart every 1k-1.5k miles. Been using Dino 5w20 since the beginning, swapped the PCV valve around 70k, didn't help. I was thinking of switching to synthetic, but paranoid that if I switch the detergents will clean any gunk that might be slowing/stopping the oil burning.