There are a lot of factors that go into choosing the best spark plugs for your car. Whether you’re looking for the best performance or the best fuel economy, there’s a set of spark plugs out there that’s perfect for you. If you have a Ford Flex, then we’ve got some good news for you: we know exactly which spark plugs are best suited for your vehicle! In this article, we’ll discuss the different options available to you and help you decide which set of plugs is right for your needs.
2013 2014 2015 2016 2017 2018 2019 Ford Flex Spark Plugs
| Info/Engine | 3.5L 6-cyl Engine | 3.5L 6-cyl Engine Turbo |
| OEM spark plug gap | 0.052″ (1.32mm) | 0.032″ (0.81mm) |
| Qty. needed | 6 | 6 |
| Change interval | 100,000 miles | 100,000 miles |
| Best spark plug | NGK 94806 LTR6BP13 Laser Platinum Spark Plug | NGK 97177 LTR6CI-8 Laser Iridium Spark Plug |
| Popular choice | NGK 6509 LTR6IX-11 Iridium IX Spark Plug | NGK 94374 LTR6IX Iridium IX Spark Plug |
2009 2010 2011 2012 Ford Flex Spark Plugs
| Info/Engine | 3.5L 6-cyl Engine | 3.5L 6-cyl Engine Turbo |
| OEM spark plug gap | 0.052″ (1.32mm) | 0.032″ (0.81mm) |
| Qty. needed | 6 | 6 |
| Change interval | 90,000 miles | 100,000 miles |
| Best spark plug | NGK 90607 ILTR5K13 Laser Iridium Spark Plug | NGK 97177 LTR6CI-8 Laser Iridium Spark Plug |
| Popular choice | NGK 4344 LTR5IX-11 Iridium IX Spark Plug | NGK 94374 LTR6IX Iridium IX Spark Plug |
The best spark plugs for Ford Flex will offer a good balance of performance and fuel economy. If you’re looking for the best performance, then we recommend choosing Iridium IX spark plugs from NGK. These plugs are designed for high-performance engines and offer superior ignition reliability and durability. They also provide excellent acceleration, torque, and throttle response. However, they do come with a higher price tag than some of the other options available.
If you’re looking for the best fuel economy instead, then we suggest opting for Platinum and Iridium spark plugs from NGK. These plugs combine platinum electrodes with an iridium alloy center electrode to deliver improved corrosion resistance and longevity. They also provide better cold starting capability and reduced emissions when compared to traditional copper spark plugs.
