Spark Plugs
04-22-23 | 11:45 PM
#1
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Driver
Joined: Apr 2023
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From: Virginia
Spark Plugs
Are TRQ good spark plugs? Is it necessary to get the coil packs when installing spark plugs?
I bought this car in March 2023 and have no idea when it had last tune up plus it get terrible gas mileage so will have mechanic also clean mef when he installs plugs and wires. Speaking of wires, who makes best ones for this car?
Ignition Coil Set with Spark Plugs 12 Piece - 2007-2018 Lexus ES350 3.5L V6 - TRQ
I bought this car in March 2023 and have no idea when it had last tune up plus it get terrible gas mileage so will have mechanic also clean mef when he installs plugs and wires. Speaking of wires, who makes best ones for this car?
04-23-23 | 09:50 AM
#3
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Driver
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From: Virginia
04-23-23 | 10:54 AM
#5
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From: CA
There are three in the rear, along the firewall, and a PIA to access. Not a bad idea to replace those coils but don't get cheap coils as they may go bad sooner than later. I’ve had good experience with Yec Flamma coils, a Japanese manufacturer of aftermarket products. People also have positive experience with Denso coils. I would not get any other unless your mechanic gives you a good warranty to replace them if they go bad. I initially bought coils from AA Ignition with two year warranty. I bought three over two years. One went bad shortly after two years. The other two went bad within two years but the company never acknowledged my warranty claims online.
04-24-23 | 12:20 AM
#7
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Driver
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From: Virginia
There are three in the rear, along the firewall, and a PIA to access. Not a bad idea to replace those coils but don't get cheap coils as they may go bad sooner than later. I’ve had good experience with Yec Flamma coils, a Japanese manufacturer of aftermarket products. People also have positive experience with Denso coils. I would not get any other unless your mechanic gives you a good warranty to replace them if they go bad. I initially bought coils from AA Ignition with two year warranty. I bought three over two years. One went bad shortly after two years. The other two went bad within two years but the company never acknowledged my warranty claims online.
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04-25-23 | 04:09 PM
#11
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From: CA
The most common reasons for bad gas mileage are:
Underinflated tires, carrying around excess weight (no, not your wife), overdue engine air filter, aggressive driving style, and all city driving with little freeway miles.
If your plugs or coils were bad, you'd be getting codes.
Underinflated tires, carrying around excess weight (no, not your wife), overdue engine air filter, aggressive driving style, and all city driving with little freeway miles.
If your plugs or coils were bad, you'd be getting codes.
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sthpawil (04-26-23)
04-25-23 | 08:34 PM
#12
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From: Illinois
04-26-23 | 01:33 AM
#13
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Driver
Joined: Apr 2023
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From: Virginia
The most common reasons for bad gas mileage are:
Underinflated tires, carrying around excess weight (no, not your wife), overdue engine air filter, aggressive driving style, and all city driving with little freeway miles.
If your plugs or coils were bad, you'd be getting codes.
Underinflated tires, carrying around excess weight (no, not your wife), overdue engine air filter, aggressive driving style, and all city driving with little freeway miles.
If your plugs or coils were bad, you'd be getting codes.
Where is the MEF located? If I can get to it probably needs cleaned!
04-26-23 | 04:31 AM
#15
Driver
Joined: Dec 2020
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From: Illinois
NOTE: There are many videos on YouTube regarding maintenance and service items for the ES350 engine, but many times it will be under Toyota Camry or 2GR-FE engine. The V6 Camry and ES350 are basically twins under the hood. One of the best YouTube channels for Lexus repairs is The Car Care Nut.
What is your MPG?
If you are in an area that has winter blend and summer blend fuels, you should see a slight increase in mpg as gasoline switches from winter blend to summer blend on May 1st
During the summer, I get 31-32 mpg on long interstate trips when driving sensibly and using PREMIUM fuel.
In my normal day to day driving which is about 60/40 highway/city and using 87 octane fuel, I get about 24 mpg during the winter and 26.5 mpg during the summer. I might expect 20-22 mpg in all city driving, but that is just a guess.
As mentioned before, your driving habits (acceleration and braking), highway vs city, and tire pressure will have a huge effect on your fuel mileage.
What is your MPG?
If you are in an area that has winter blend and summer blend fuels, you should see a slight increase in mpg as gasoline switches from winter blend to summer blend on May 1st
During the summer, I get 31-32 mpg on long interstate trips when driving sensibly and using PREMIUM fuel.
In my normal day to day driving which is about 60/40 highway/city and using 87 octane fuel, I get about 24 mpg during the winter and 26.5 mpg during the summer. I might expect 20-22 mpg in all city driving, but that is just a guess.
As mentioned before, your driving habits (acceleration and braking), highway vs city, and tire pressure will have a huge effect on your fuel mileage.