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Auto Repair Shop's Been Using the Wrong Motor Oil
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cbrown6305
New User
Oct 18, 2013, 1:44 PM
Post #1 of 6
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Auto Repair Shop's Been Using the Wrong Motor Oil
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I'm in need of some advice. I have been taking my car to the same place to get it serviced for the last year (first year of ownership). I had just taken it in and asked for oil changes without specifying what oil to use. I assumed they would know - bad assumption. They have been using regular motor oil this whole time while they should have been using full synthetic (5W-20). The car is a 2013 Hyundai Sonata and I haven't had any trouble with it. It has 18,500 miles on it. They said they will flush the engine and replace with full synthetic, but I don't know if any additional damage was done from not using the proper motor oil. Should i take it to a mechanic to get it checked out? I dont want to end up with a huge problem because of this.
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Hammer Time
Ultimate Carjunky
/ Moderator
Oct 18, 2013, 1:49 PM
Post #2 of 6
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Re: Auto Repair Shop's Been Using the Wrong Motor Oil
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I don't know where you got that info from. Here is the factory requirement Engine Oil 2.0 turbo Type API Service SM, ILSAC GF-4, ACEA A5 or above. Viscosity 5W-30, 5W-40 2.4 engine Grade API Service SM, ILSAC GF-4 or above. Viscosity All temperature range 5W-20, 5W-30 Above 0°F (-18°C) 10W-30 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cbrown6305
New User
Oct 18, 2013, 2:30 PM
Post #3 of 6
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Re: Auto Repair Shop's Been Using the Wrong Motor Oil
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Do you mind if I ask what the source of this information is? The oil cap displays "SAE 5W-20" and several other internet sources have listed 5W-20. I would be happy to hear that I could use either.
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Hammer Time
Ultimate Carjunky
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Oct 18, 2013, 2:39 PM
Post #4 of 6
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Re: Auto Repair Shop's Been Using the Wrong Motor Oil
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That came from Alldata which is factory service manual info. Here are the API designations ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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cbrown6305
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Oct 18, 2013, 3:27 PM
Post #5 of 6
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Re: Auto Repair Shop's Been Using the Wrong Motor Oil
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Cool, thanks! Also, I don't know if there is a distinction between synthetic and non-synthetic for 5W-30. I'm assuming either is fine. Is this correct?
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Hammer Time
Ultimate Carjunky
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Oct 18, 2013, 3:30 PM
Post #6 of 6
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Re: Auto Repair Shop's Been Using the Wrong Motor Oil
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Of course synthetic is better but worth the cost?, not necessarily. You can leave it in a little longer. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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