Is it okay to mix Mopar 5W-20 with 1.5 liter of Total Quartz 5W-40? Driving in the middleast

  • This question already has an answer here: mechanics.stackexchange.com/q/2891/675
    – Zaid
    Jul 12 '16 at 14:13
  • And why would you want to? Jul 12 '16 at 20:39
  • 1
    The question listed as a duplicate refers specifically to a Wankel rotary engine, and doesn't take place in the Middle East where driving conditions could change the answer.
    – cdunn
    Jul 12 '16 at 21:12
  • I normally take the jeep to garage to have the oil change, however, I had short of Mopar 5W-20 oil, so the shop added some 1.5 liters of Total Quartz 5W-40. I was only worried about the engine.
    – ATubo
    Jul 13 '16 at 5:29

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