how many miles would you drive on synthetic oil

[blazeplacid 10+ year member]

Why does every body use Mobile1 it seems' date=' do you guys think it is that much better then Castrol and K&n Filters.[/quote']

Like I said, everyone has thier favorite kind of oil. DONT say that your oil is better than anyones every, a fight will follow //content.invisioncic.com/y282845/emoticons/rolleyes.gif.c1fef805e9d1464d377451cd5bc18bfb.gif

people make such a huge deal out of it.

 

[maddskillzz 10+ year member]

Synthetic oil gets dirty just as fast as conventional oil.. i agree with most of these posts...3000 is a little much unless you live in a really hot climate but i wouldnt let it go over 6000

 

[garrettpf 10+ year member]

I was told by the service manager at the local dealership that i should not use synthetic oil. I asked him why, and he said "because it causes engine sludge"

LMFAO, I would never go back there again. Synth does a better job of holding particles that would cause sludge. Sludge is caused by several things, most prelevent would be people not changing oil but just adding different types and such.

 

[Thread Saver 10+ year member]

7 quart capacity and I change every 7-9k.

 

[delvryboy 5,000+ posts]

I change mine every 3k-5k with Castrol GTX high mileage(75' date='000), 10W-40, and a K&N filter. Plus Slick50 every time.
Need to do it again after these past 2 weeks went from Tallahassee to ATL to Nashville back to Tallahassee To SWFL back to Tallahassee in the last two weeks lol.

Why does every body use Mobile1 it seems, do you guys think it is that much better then Castrol and K&n Filters.[/quote']

I do my own changes, so synthetic costs me a few bucks more than a lube joint.

Plus, a few months back Autozone was running a $25 oil change special: 5 qts. M1 w/ M1 filter..... I bought 4.//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif