Octane Fuel Used for 2020 GLE450
09-25-2021 | 06:36 PM
#26
Junior Member
Joined: Dec 2018
Posts: 50
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ML 350
Read my post and related ones here: https://mbworld.org/forums/gle-class...ml#post7775118
That is a poor idea, IMO. The car will run, but you are giving up performance, economy and will have a dirtier engine in the long run (both internally, and with emissions). The engineers spent a lot of work optimizing the engine, and you are compromising it. The manual recommends against using low ocatanes on a regular basis for reasons. Use Premium. This is not an cheap econobox.
That is a poor idea, IMO. The car will run, but you are giving up performance, economy and will have a dirtier engine in the long run (both internally, and with emissions). The engineers spent a lot of work optimizing the engine, and you are compromising it. The manual recommends against using low ocatanes on a regular basis for reasons. Use Premium. This is not an cheap econobox.
09-28-2021 | 12:27 PM
#27
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Joined: May 2018
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From: Illinois
2021 c300 Cab. Arrived 7/28/21 . 24 GLE 450e.
The manual specifically requires premium. It DOES NOT say recommended. It says requires. It even tell you what to do if you have to put regular in. Fill with premium as soon as possible. Why is this even a discussion?
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DavidBN (09-29-2021)
09-28-2021 | 11:36 PM
#28
Super Member
Joined: Sep 2015
Posts: 526
Likes: 201
From: Texas
2021 GLE 53 AMG Coupe
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mikapen (10-13-2021)
10-14-2021 | 01:41 PM
#30
Senior Member
Joined: Mar 2021
Posts: 449
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2024 GLE, 2022 GLC , 2022 GLC
Fuel octane
On a somewhat related topic, I do know of people who lease vehicles that the manufacturer recommends premium fuel and the only gas ever used was regular.They wrongly believe that they are just using their vehicle for 3 years and then turning it in. The unsuspecting buyer of this preowned vehicle may be purchasing a car with more engine wear than the mileage may indicate due to the lower octane used for 3 years. The dealer selling the car is either unaware of this or more accurately doesn’t care. I purchased my GLE so therefore I will only use premium. The most common explanation by the person using regular is “it runs the same “. I would love to save money and use regular gas, however, the manufacturer recommended premium for a reason.
10-14-2021 | 01:47 PM
#31
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Joined: Sep 2021
Posts: 208
Likes: 78
From: SoCal
2021 GLE 350, 2020 911 C2S MT, 2023 Polestar 2, '73 Alfa GTV
On a somewhat related topic, I do know of people who lease vehicles that the manufacturer recommends premium fuel and the only gas ever used was regular.They wrongly believe that they are just using their vehicle for 3 years and then turning it in. The unsuspecting buyer of this preowned vehicle may be purchasing a car with more engine wear than the mileage may indicate due to the lower octane used for 3 years. The dealer selling the car is either unaware of this or more accurately doesn’t care. I purchased my GLE so therefore I will only use premium. The most common explanation by the person using regular is “it runs the same “. I would love to save money and use regular gas, however, the manufacturer recommended premium for a reason.
Last edited by Aggie57; 10-14-2021 at 01:51 PM.
10-14-2021 | 02:53 PM
#32
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Joined: Oct 2009
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From: Colorado
'21 AMG53 wDPP & ARC, 19 GLC300 - Former- 10&14 ML BlueTecs, 20 GLE450 E-ABC, 15 Cayenne D, 17 Macan
On a somewhat related topic, I do know of people who lease vehicles that the manufacturer recommends premium fuel and the only gas ever used was regular.They wrongly believe that they are just using their vehicle for 3 years and then turning it in. The unsuspecting buyer of this preowned vehicle may be purchasing a car with more engine wear than the mileage may indicate due to the lower octane used for 3 years. The dealer selling the car is either unaware of this or more accurately doesn’t care. I purchased my GLE so therefore I will only use premium. The most common explanation by the person using regular is “it runs the same “. I would love to save money and use regular gas, however, the manufacturer recommended premium for a reason.
Almost always, it unlocks the performance potential, and the car is more pleasurable to drive.
It can be pretty noticeable.
