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Old 12-07-2013, 02:47 PM
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Oil question.

Hi I have a 2006 grand Cherokee diesel,in my manual it recommends 10w 40 fully synthetic on the web site wk mainteanance schedules they say 5w30 fully synthetic which one should I use. I find on all web sites selling oil that when I put in my reg they also say 5w30 fully synthetic.regards Martin
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Old 12-15-2013, 11:57 AM
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Re: Oil question.

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Originally Posted by Wilkie View Post
Hi I have a 2006 grand Cherokee diesel,in my manual it recommends 10w 40 fully synthetic on the web site wk mainteanance schedules they say 5w30 fully synthetic which one should I use. I find on all web sites selling oil that when I put in my reg they also say 5w30 fully synthetic.regards Martin
5W40 or 5w30 for the wk ,
the 10w40 semi synthetic is not recommended for this truck but for former WJ
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Old 12-15-2013, 06:18 PM
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Re: Oil question.

Hi Thank goodness I bought the 5w30 fully synthetic.regards Martin.
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Old 12-16-2013, 01:40 PM
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Re: Oil question.

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Hi Thank goodness I bought the 5w30 fully synthetic.regards Martin.
just take care that it fulfills the MB 229.51 norm
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Old 12-16-2013, 02:56 PM
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Re: Oil question.

Hi yes it is the oil is Total Quartz Ineo MC3 5W30 Engine Oil MERCEDES-BENZ :MB 229.31, MB 229.51.regards Martin.
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Old 04-12-2014, 01:12 AM
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Re: Oil question.

I ordered Amsoil European formula for diesel and turbo cars. It is 5W30 Low SAPS and meets the MB229.51 specs with DPF installed. I plan on changing my filter every 7500 miles and oil every 15,000. I will have my first 15,000 checked by BlackStone Labs, free test kit and oil analysis costs $25. I'll see if they would then recommend more frequent oil changes or not. I also plan on getting a GDE EcoTune and removing the DPF which should also allow me to use the standard diesel amsoil and not be required to have low saps.
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Old 07-10-2014, 07:53 AM
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Re: Oil question.

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Originally Posted by ggrassmid View Post
I ordered Amsoil European formula for diesel and turbo cars. It is 5W30 Low SAPS and meets the MB229.51 specs with DPF installed. I plan on changing my filter every 7500 miles and oil every 15,000. I will have my first 15,000 checked by BlackStone Labs, free test kit and oil analysis costs $25. I'll see if they would then recommend more frequent oil changes or not. I also plan on getting a GDE EcoTune and removing the DPF which should also allow me to use the standard diesel amsoil and not be required to have low saps.

I use the same oil even with my tune, makes me sleep better! I change my oil every 12,000 km. love to know the lab results!
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Old 07-10-2014, 08:48 AM
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Re: Oil question.

Quote:
Originally Posted by Wilkie View Post
Hi I have a 2006 grand Cherokee diesel,in my manual it recommends 10w 40 fully synthetic on the web site wk mainteanance schedules they say 5w30 fully synthetic which one should I use. I find on all web sites selling oil that when I put in my reg they also say 5w30 fully synthetic.regards Martin
Personally I would ask a tech at the service dept. My opinion would be to go with what the manual says. That is assuming your looking at the correct manual for the correct engine. I assume you just bought this used and have seen where manuals get switched by accident. If you use a lighter weight oil in an engine designed for a heavier weight than you increase the risk of engine wear.
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