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S-Class (W140) 1991-1999: 300 SD, S 350TD, 300 SE 2.8, S280, 300 SE 3.2, 300 SEL 3.2, S320, S320L, 400 SE, S420, 400 SEL, S420L, 500 SE, S500, 500 SEL, S500L, 600 SE, S600, 600 SEL, S600L, 500 SEC, 600 SEC

Hot climate (New Orleans) engine oil for '93 300SD

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Old Aug 12, 2017 | 10:13 AM
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Jpl501
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1993 300SD
Hot climate (New Orleans) engine oil for '93 300SD
The car has 120k miles on it with what seems to be minimal oil burn. The previous owner was a mechanic out of San Antonio and used it as his personal car.

Currently the car has 15w30 in it, but I am not sure if it is natural or synthetic.

Any recommendations for engine oil (synthetic or conventional) for a hot/humid climate like New Orleans.

Thank you very much!

JP
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Old Aug 13, 2017 | 11:26 AM
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oldsinner111
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From: tennessee
s320
15w40 all year if down south.Use any brand if diesel rated except super tech,its thin
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Old Aug 14, 2017 | 06:17 PM
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1993 300SD
Thank you. Would you recommend conventional or synthetic?
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Old Aug 15, 2017 | 10:33 AM
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From: tennessee
s320
synctheic may cause leaks,I only use if temps go lower than 14 degrees f.
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