Variable ignition timing

2465 Views 3 Replies 3 Participants Last post by LivNowPayL8r, Oct 25, 2020

mrmike

Discussion Starter · Oct 12, 2020

My three previous vehicles ('14 Escape Titanium 2.0, '17 Lincoln MKC Reserve 2.3, and '19 Edge Titanium 2.0) all had variable ignition timing. This allowed the owner to use regular gasoline (87 octane). However if you used a premium gasoline (93 octane) the engine produced a few more horsepower. Question is will a higher octane gasoline produce better performance in a '20 Ecosport Titanium 2.0?

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Adambomb945

· #2 · Oct 21, 2020

Im a believer in 93 octane in all of my vehicles. Ill always use Top Tier fuel as well.

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mrmike

Discussion Starter · #3 · Oct 21, 2020

Adambomb945 said:
Im a believer in 93 octane in all of my vehicles. Ill always use Top Tier fuel as well.

Amen! I also use a full synthetic oil (Mobil 1) in all my vehicles. The investment is worth a few extra bucks in my opinion!

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LivNowPayL8r

· #4 · Oct 25, 2020

I would be very surprised if there was a noticable, or even measurable, difference by burning more expensive gasoline. The engineers have optimized the engine to run on commonly available gas. Additionally, there are many factors other than ignition timing that affect combustion... compression ratio, valve timing, combustion chamber shape, intake and exhaust runner length & shape, etc.

For the ~50 cent difference between 87 and 91, I will be using a Top Tier 87 for the life of the vehicle.

Enjoy!

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