What type of fuel does a Chrysler 300C use?

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4 answers

★ Top Answer

Arnold A. Jan 18, 2021

The Chrysler 300c requires regular gasoline for optimal fuel efficiency and maximizing your mileage. It's important to ensure your gas tank is in good condition to avoid issues down the line. Problems such as a stuck gas cap, potential gas leaks, or a loose gas tank should be addressed promptly. Additionally, keep an eye out for a faulty control valve as car parts can wear out over time. Don't forget to change the fuel filter every 30,000 miles to maintain performance quality and prevent potential issues.

More answers

serge May 14, 2020

Chrysler suggests using a mid-grade 89 octane gasoline for the 5.7L engine and premium 91 octane for the 6.4L engine.
Cecil S Dec 14, 2020

I use 89 octane fuel in my 2018 Chrysler 300C, which is mostly stock except for a KN cold air intake. I take it to my local NHRA Dragstrip a couple of times per month. When running the quarter-mile, my average time is 13.78 seconds at 103 mph. I achieve this without any added weight in the car and by reducing the rear tire pressure to 29lbs with a quarter tank of 89 octane fuel. I've tried using 93 octane fuel, but it didn't show any improvement, so I stick with 89 octane for now. I've been looking into switching to E85 fuel, but this would require some modifications that could void my factory warranty. Since I want to maintain the warranty, I'm avoiding any tuning or modifications that could potentially invalidate it. While I've considered changing the exhaust system, I find that the factory sound is sufficient for the luxury performance sedan experience I desire. Overall, I appreciate the performance and luxury aesthetics of my 300C, which is why I didn't opt for a Charger RT despite its allure. I have some queries about OBD-II plug-in tuning and whether or not they are effective, as well as any potential pros and cons associated with using them.
steve simmons Apr 5, 2022

Here's a paraphrased and updated version of the text:

Original text: "Regular exercise can improve your overall health and wellness."

Paraphrased version: "Engaging in consistent physical activity can enhance your overall well-being and health.

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