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Need Help Improving My MPG Lexus RX 350 - Car Talk - Nairaland

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Need Help Improving My MPG Lexus RX 350 by 01Tunex: 6:06pm On May 03, 2022
Good day!

I’m driving a 2007 Lexus RX 350.

I currently average 13-13.5 MPG on my tests.

I have 2 codes on my OBD test
P0420
P0430

Other than that, ride is ok.

I use the correct rated oil 5W-30 and change oil every 5k miles.
I’ve also cleaned my MAF and intake valves.

What else can I do to improve my MPG please?

I don’t expect the present codes should affect the MPG that badly☹️
Re: Need Help Improving My MPG Lexus RX 350 by aieromon(m): 11:52pm On May 03, 2022
01Tunex:
Good day!

I’m driving a 2007 Lexus RX 350.

I currently average 13-13.5 MPG on my tests.

What else can I do to improve my MPG please?

Your MPG is pretty normal considering the age of the V6 engine, poor quality fuel and driving conditions.

You can choose to replace the catalyst converters on both banks or delete+install spacers.
Re: Need Help Improving My MPG Lexus RX 350 by olumzzz(m): 5:30am On May 04, 2022
01Tunex:
Good day!

I’m driving a 2007 Lexus RX 350.

I currently average 13-13.5 MPG on my tests.

I have 2 codes on my OBD test
P0420
P0430

Other than that, ride is ok.

I use the correct rated oil 5W-30 and change oil every 5k miles.
I’ve also cleaned my MAF and intake valves.

What else can I do to improve my MPG please?

I don’t expect the present codes should affect the MPG that badly☹️
Not enough info.
Is this city or highway?
If city, which city?
Re: Need Help Improving My MPG Lexus RX 350 by kingreign(m): 6:09am On May 04, 2022
aieromon:


Your MPG is pretty normal considering the age of the V6 engine, poor quality fuel and driving conditions.

You can choose to replace the catalyst converters on both banks or delete+install spacers.


It’s not normal sir
Re: Need Help Improving My MPG Lexus RX 350 by kingreign(m): 6:10am On May 04, 2022
01Tunex:
Good day!

I’m driving a 2007 Lexus RX 350.

I currently average 13-13.5 MPG on my tests.

I have 2 codes on my OBD test
P0420
P0430

Other than that, ride is ok.

I use the correct rated oil 5W-30 and change oil every 5k miles.
I’ve also cleaned my MAF and intake valves.

What else can I do to improve my MPG please?

I don’t expect the present codes should affect the MPG that badly☹️

Location matters, you can’t be in Lagos expect good mpg. Where are you?
Re: Need Help Improving My MPG Lexus RX 350 by homeboy205: 11:14am On May 04, 2022
I don’t use city drive MPG to judge my Lexus anymore.

Take it on the highway, reset the avg mpg before the start of the trip.. watch where it settles after the trip.

You might also have to check for sticking calipers

2 Likes

Re: Need Help Improving My MPG Lexus RX 350 by 01Tunex: 6:35pm On May 04, 2022
olumzzz:

Not enough info.
Is this city or highway?
If city, which city?

Abuja

City driving but mixed most times as I’m on the highway till I reach central areas.

Best I ever got was when I did my last oil change, then I travelled next day. I got about 17MPG.
Re: Need Help Improving My MPG Lexus RX 350 by olumzzz(m): 6:50pm On May 04, 2022
01Tunex:


Abuja

City driving but mixed most times as I’m on the highway till I reach central areas.

Best I ever got was when I did my last oil change, then I travelled next day. I got about 17MPG.
Kingreign here you go
Re: Need Help Improving My MPG Lexus RX 350 by kingreign(m): 7:28pm On May 04, 2022
01Tunex:


Abuja

City driving but mixed most times as I’m on the highway till I reach central areas.

Best I ever got was when I did my last oil change, then I travelled next day. I got about 17MPG.
You need a tune up. Reach out to me on 07034581213 if it’s okay by you.
Re: Need Help Improving My MPG Lexus RX 350 by 9icetoo(m): 11:32am On May 05, 2022
01Tunex:


Abuja

City driving but mixed most times as I’m on the highway till I reach central areas.

Best I ever got was when I did my last oil change, then I travelled next day. I got about 17MPG.
Accelerate gently.
Harsh acceleration, speeds above 100km/hr and hard braking is the enemy of good mpg.
Try to keep your revs below 2200 rpm and you will see a change in your mpg.

1 Like

Re: Need Help Improving My MPG Lexus RX 350 by kingreign(m): 12:15pm On May 05, 2022
9icetoo:

Accelerate gently.
Harsh acceleration, speeds above 100km/hr and hard braking is the enemy of good mpg.
Try to keep your revs below 2200 rpm and you will see a change in your mpg.

I’ve checked his car. A few needs to be done.
Re: Need Help Improving My MPG Lexus RX 350 by homeboy205: 9:14am On May 06, 2022
kingreign:


I’ve checked his car. A few needs to be done.

Like what boss ?
Re: Need Help Improving My MPG Lexus RX 350 by kingreign(m): 9:16am On May 06, 2022
homeboy205:


Like what boss ?
Don’t worry. The report is meant for the owner only and I am not permitted by professional conduct to divulge such info.
Re: Need Help Improving My MPG Lexus RX 350 by 9icetoo(m): 4:47pm On May 06, 2022
kingreign:


I’ve checked his car. A few needs to be done.
Aite chief. Abeg give am correct service. We need our japmobiles performing at their best. cheesy
Re: Need Help Improving My MPG Lexus RX 350 by kingreign(m): 5:31pm On May 06, 2022
9icetoo:

Aite chief. Abeg give am correct service. We need our japmobiles performing at their best. cheesy
He was suppose to come today but I no see his brake light.

1 Like

Re: Need Help Improving My MPG Lexus RX 350 by buygala(m): 6:36pm On May 06, 2022
kingreign:
He was suppose to come today but I no see his brake light.
.

You don nak am invoice wey make him brain turn ba?

When he considered how much fuel the amount you billed him will buy, he ran away when he saw that the money for your tune-up will give him extra fuel to add to his current fuel expense for more than a year grin

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