Mazda dealer changed my oil to Mobil 1 10w-30 synthetic (w203)
I have a free oil changes for a lifetime at this Mazda dealership. I took my car and had my engine oil replaced. The first time they change my oil, they put Mobil 1 5w-40 synth. ( I don't remember). Second time was Mobil 1 10w-30 synth. According to my owners manual I should use Mobil 1 0w-40 synth. I checked the info on 10w-30, it does not meet the requirement for my 2002 c240. I also called the 1-800 hotline and the rep said 10w-30 is just fine.
I'm thinking about switching to 0w-40 oil , but my question is, am i gonna be fine with 10w-30 that i have right now, BTW I live in Arizona, it's like 99 degrees Farenheit.
Yet, another oil question.



It is a question of who do you trust. A building full of lubrication engineers at Mercedes and ExxonMobil, or a fella who works at a 1 800 phone room?
On second thought, looking at how fast gas prices are rising, perhaps trust and ExxonMobil should not be in the same paragraph.



You will see some bottles of Mobil 1 that say they are used by Mercedes-Benz, but if they don't quote 229.5, it is NOT approved for use in our cars.
Don't overlook the filter either, make sure you are getting the fleece filter. It is made by Mann-Hummel, but I have not seen one outside a Mercedes-Benz dealer.
I am not sure why you would notice a difference in accelaration, the proper oil is not that much different than other Mobil 1 products. It is mostly the longevity of the additive package that is different. This means the oil meets specifications longer than other oils with less robust additives.
You will see some bottles of Mobil 1 that say they are used by Mercedes-Benz, but if they don't quote 229.5, it is NOT approved for use in our cars.
Don't overlook the filter either, make sure you are getting the fleece filter. It is made by Mann-Hummel, but I have not seen one outside a Mercedes-Benz dealer.
I am not sure why you would notice a difference in accelaration, the proper oil is not that much different than other Mobil 1 products. It is mostly the longevity of the additive package that is different. This means the oil meets specifications longer than other oils with less robust additives.
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The filter 'kit' from Mercedes comes with a Mann HU 718/5 filter, also marked with a star and A112 184 05 25, and four O rings to reseal the housing. The filter has brown colored ends and white pleated filter material. The entire cylinder is wrapped with string saturated in glue.
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The filter 'kit' from Mercedes comes with a Mann HU 718/5 filter, also marked with a star and A112 184 05 25, and four O rings to reseal the housing. The filter has brown colored ends and white pleated filter material. The entire cylinder is wrapped with string saturated in glue.



