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Old 04-16-2015, 03:13 PM
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Good oil to use?

I'm currently using quaker State 5w-20 on my 07 jeep wrangler and was thinking of switching to a full synthetic oil. I have heard alot of good things about mobile 1. Any other recommendations on oil selection or weight? Any opinions will be appreciated. Thanks

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Old 05-02-2015, 01:55 PM
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Re: Good oil to use?

My preference is Mobil 1 Extended Performance. I got it for my first oil change in my current Grand Cherokee. I use it in my car. I used it my old Grand Cherokee. My old Grand Cherokee had around 105,000 miles on it when I sold it and it ran great.
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Old 05-06-2015, 06:23 PM
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Re: Good oil to use?

Castrol GTX 20w50
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Old 06-11-2015, 09:04 PM
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Re: Good oil to use?

Use 5w or 0w depending on where you live. Semi-synthetic should be fine but most like to stick with the same brand.

Do not put thicker oil like 20W in newer vehicles. This was something done on many older V-8s but as tolerances are more rigid and oil filters are designed to run s thinner viscosity oil you will end up hurting your oil pump as it will become conditioned to using thicker fluid and when you have a cold day you won't have the lubrication necessary because 20 is the thinnest you rig has used and the oil pump won't get the thinner stuff moving.

Old Wranglers are fine with that thick castrol if you have a engine warmer in cooler climates but if you have a Pentastar or any modern engine stick with the ANSI 5w-30w semi or fully synthetic. 0w-30w, is for places with long stretches of Winter where outside temperatures are routinely under 5F. The places you see trucks and cars using thick cloth to cover up much of their radiator. I hate those places but it does get cold here in Winter.
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Old 06-12-2015, 08:49 AM
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Re: Good oil to use?

Quote:
Originally Posted by champagneinhand View Post
Use 5w or 0w depending on where you live. Semi-synthetic should be fine but most like to stick with the same brand.

Do not put thicker oil like 20W in newer vehicles. This was something done on many older V-8s but as tolerances are more rigid and oil filters are designed to run s thinner viscosity oil you will end up hurting your oil pump as it will become conditioned to using thicker fluid and when you have a cold day you won't have the lubrication necessary because 20 is the thinnest you rig has used and the oil pump won't get the thinner stuff moving.

Old Wranglers are fine with that thick castrol if you have a engine warmer in cooler climates but if you have a Pentastar or any modern engine stick with the ANSI 5w-30w semi or fully synthetic. 0w-30w, is for places with long stretches of Winter where outside temperatures are routinely under 5F. The places you see trucks and cars using thick cloth to cover up much of their radiator. I hate those places but it does get cold here in Winter.
15w-50 is speced by SRT for 6.1's where customers complain about lifter noise in the warmer months, so thicker oil can still be ran on certain engines.
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Old 07-09-2015, 04:10 AM
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Re: Good oil to use?

Quote:
Originally Posted by jay.downing.522 View Post
I'm currently using quaker State 5w-20 on my 07 jeep wrangler and was thinking of switching to a full synthetic oil. I have heard alot of good things about mobile 1. Any other recommendations on oil selection or weight? Any opinions will be appreciated. Thanks
Go here for AMSOIL AMSOIL Online Product Application Guide

It meets the standard required by the manufacturer, meet or exceed the standard and you good to go with any oil.

This is the only oil Manufacturer I can find in Australia that states they meet the Chrysler standard for my vehicle
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Old 07-17-2015, 01:29 AM
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Amsoil 5w20 signature series
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Old 07-17-2015, 03:33 AM
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Re: Good oil to use?

Quote:
Originally Posted by jay.downing.522 View Post
I'm currently using quaker State 5w-20 on my 07 jeep wrangler and was thinking of switching to a full synthetic oil. I have heard alot of good things about mobile 1. Any other recommendations on oil selection or weight? Any opinions will be appreciated. Thanks
AMSOIL go here AMSOIL - Synthetic Oil, Motor and Engine Oil, Lubricants, Air Filters, Oil Filters and Greases

This oil meets all the Chrysler MS XXXXX standards for oil and from memory was the first full synthetic out there.

Mobil 1 might be good oil but it does not state anywhere I can see that it meets or exceeds the Chrysler MS XXXXX standards for oil, in fact Amsoil was the only oil to state that it meets the Chrysler MS XXXXX standards for oil when I was checking the specs for a variety of oils. The thread is here http://www.cherokeesrt8.com/forums/s...d.php?t=177842

hope this helps
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Old 11-22-2015, 07:44 AM
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Re: Good oil to use?

A little late but I used Mobile 1 Extended Performance in my 2007 Jeep Patriot, 174,000 miles later still runs great. Oil changed every 15,000 miles with a filter change every 7,500.
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Old 11-22-2015, 12:54 PM
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Re: Good oil to use?

Mobil One is great if the engine is broken in and continuously uses Mobil One. It's expensive but so are engine components. Interesting that you change filters twice as often as you change the oil. I know a pair of kids that are using the royal purple and changing just once a year in both their Volvos. Taking big risks with Volvo engines but it's their risk to take.

With motorcycles, especially the high compression crotch rockets we stuck with the manufacturers lube ...Yahamalube or Hondas brand. They have no detergents but such tight engines with ceramics and such. It also lubricates the gear box. Definitely different oils for different styles of engines.

Mobil Ine was certainly the first synthetic, but what does fully synthetic mean exactly. Not from crude oil? Is it mineral or vegetable based oils and why would that be any better. Just some thoughts about the chemical makeup of the synthetics. Surely they are hydrocarbons regardless of origin.

In everything else synthetic means using some hydrocarbon from fossil fuels mimicking something else found in nature. Other than hydrocarbons, silicon, the metal ores and water are the basis for almost everything on the earths crust and above it is the gas state molecules.
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