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-   -   Should I use synthetic oil? (http://www.jeepforum.com/forum/f98/should-i-use-synthetic-oil-1388234/)

downbreak 07-02-2012 03:39 PM

Should I use synthetic oil?
 
Hey guys,
I bought my first Jeep last October and pretty much loving it other than a few things I have to keep taking it back to the dealer for, but that's a different topic. I'm trying to learn the do-it-yourself basics because I don't trust my mechanic since he blatantly lied to my face about changing the oil the last time. My friend gave me a crash course in changing oil and I was just wondering, is there a benefit to using synthetic oil? I'm told royal purple is a kick *** oil to use, but I'm also told once I use synthetic I must only use synthetic. Also, for oil filters, does it matter what kind? I used Fram last time, but I notice K&N has an oil filter also, and I'm told that it is also a great brand. Any information would be greatly appreciated! I drive a 2011 Jeep Compass 2x4 by the way.

CanadianJets 07-02-2012 09:29 PM

Hello.

I know that Mobil 1 is the best synthetic oil ever. Using synthetic oil has the benefit in winter time. The vehicle will start easier in real cold whether. I live in Calgary and we had like -45 C with a windshield. I remember the power outlet didn't work so the blockheater was useless but my car started with the first attempt. Thanks to synthetic oil. I'm not really familiar with the filters. I think the modern brand don't care of the type of oil you use. Hope my response was helpful.

Gramps 07-03-2012 07:30 AM

There are 'fans' of various manufactures out there that will say their's is the best. I have normally used NAPA full synthetic (private label Valvoline) in both mine and the wife's Hemi with normal oil changes at 5K and I use the NAPA Gold filters. I have also used AMSOIL and at the time they didn't make their own filter and the used and recommended the NAPA Gold filter.

downbreak 07-03-2012 07:34 AM

Ok thanks a bunch for the feed back. Unfortunately I'm in Houston Texas and our winters rarely drop below 60 degrees and if it does it's only for a few hours. But since you guys say it's worth it I'll definitely keep it in mind. Thank you!

Gramps 07-03-2012 07:43 AM

If you stay with the 5W-20 that's recommended they are all at least partially synthetic which lasts longer before breaking down. That can give you some peace of mind if you're a slacker on oil changes or the weather isn't cooperating. If I was back in Tucson I would be using 5W-30 synthetic.

bigkat91 07-03-2012 11:42 PM

With the heat in the midwest I'm wishing I would have changed to 5w-30...

Gramps 07-04-2012 09:35 AM

Quote:

Originally Posted by bigkat91 (Post 13815975)
With the heat in the midwest I'm wishing I would have changed to 5w-30...

I hear ya!! This heat's a killer with the humidity but with no rain in sight for me.

bigkat91 07-04-2012 08:52 PM

Quote:

Originally Posted by Gramps

I hear ya!! This heat's a killer with the humidity but with no rain in sight for me.

None here either a good 5" soak over a week wouldn't be too upsetting.

ddavidv 07-05-2012 05:30 AM

For a normal use vehicle non-synth is perfectly fine if changed at the recommended intervals. Buy a quality oil (in other words, not Wal-Mart brand) and you'll have no issues. The only real advantage to synth and it's substantially higher price is temperature extremes and longer change durations. Synth or not, you should generally choose an oil and stick to it over the life of a vehicle, but using synth a few times does not negate it from ever going back to dino oil. I've used both in various vehicles and to me the added cost, if you're changing at the regular intervals, is not worth it.

Filters...boy, you'll get umpteen different answers from as many owners. So here's mine: Fram has built their product to a price to be competitive and sold at the chain stores (the -marts). I prefer Wix or NAPA Gold, but for the Jeep I just buy the OEM filters from the dealer in a 10-pack at a discount. Makes them price competitive with the other ones I mention.

I race a BMW, and I use OEM equivalent filters and dino 'racing' oil (no sythetic). The extremes that engine is put to are nothing your Jeep will ever experience, and it works extremely well for me.

downbreak 07-11-2012 02:53 PM

Awesome, thank you so much for all your advice! Being new to this I will take all the advice I can get

MossGreen97 07-20-2012 06:47 PM

I use nothing but Mobil 1 in both of my vehicles.
http://i427.photobucket.com/albums/p...s/100_0053.jpg
This the oil pan of my XJ's 4.0 after 120k miles.
http://i427.photobucket.com/albums/p...s/100_0056.jpg
And this is the underside of the crank at the same time. Nothing was cleaned prior to taking the picture. No oil usage or leaks. I also use Purolator Pure one filters.

Ledge 07-20-2012 08:04 PM

I personally am no mechanic so I don't know all of the research data but I can tell you in my last 2 cars, a mazda and a jeep, I've run mobile 1 synth. The Mazda had 246,000 miles on it when I sold it and never had an engine related repair. A friend of the family bought the car from me and has since run it up to 300,000 still with no engine related repairs. My MK has 136,000 on it and so far needed no repairs what so ever.

I can't tell you if it is the mobile1 or just finally some good luck but all my prior vehicles ran "normal" oil and had many engine related problems well before 136,000 miles. I won't run anything else.......until something better comes along :D


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