Aqua average drop

[mahmadk8822]

Guys i have a 2015 aqua odo 22400. (Genuine)
Picking it up from showroom the average meter was showing above 20kmpl till 2-3 days until I changed its oil, oil filter and totally worn out tyres. Now its giving 17 kmpl.
New oil: Zic 5w-30
New genuine oil filter.
Old tyres: Dunlop 175/65/r15
New tyres: Yokohama 195/65/R15
I know the tyres are bigger than normal but there are very large bumps where i live so it was necessary.
So please tell me what is the reason of average drop Thanks.

[saad.ikram.5688]

Try to check if hybrid battery fan is clogged

[amaarali]

I guess 5w30 is a bit more viscous fr aqua.company recommends 0w20 fr it i guess.

[mahmadk8822]

Yes but 0w20 is for cold weather I asked on pakwheels and most of them suggested 5w30 for pak’s hot weather. Still, maybe oil is one of the mentioned issue for mileage drop.

[amaarali]

Bro few areas of japan r even more hot than pakistan.but they still pour 0w20 in there cars.and i guess japanese r not stupid neither toyota engineers who make cars r stupid who recommed tht oil.otherwise its ur car.

[hash4u]

the tyre dia has significantly increased
i think your car is 1 inch higher now in ground clearance
but speedometer readings and avg readings will stay out now
you are covering more distance per single tyre revolution now

[anon35615524]

Bro, as far as oil is concerned, following are the recommended oil grades for Aqua:

For June 2017 and onward: 0w-16, 0w-20 and 5w-30
(Source: https://toyota.jp/pages/contents/aqua/001_p_011/pdf/spec/aqua_201808.pdf page: 435/468)

For November 2015 and onward: 0w-16, 0w-20, 5w-20, 5w-30 and 10w-30
(Source: https://toyota.jp/pages/contents/aqua/001_p_011/pdf/spec/aqua_201610.pdf page: 415/452)

If one wants more details, he can have a look at page numbers which I have mentioned, but details are in Japanese language.

I personally think ZIC 5w-30 is not the culprit (as long as it is 100% genuine and original) and 5w-30 is one of the recommended oil grades. Next time, you may go for Total Quartz 9000 Future series (or latest) 5w-30, API SN, Fully Synthetic engine oil, but ensure that any oil you buy is 100% genuine, original and authentic. Total Quartz is best value for money.

I think, tire size is the main reason (if nothing else has been changed / altered). For comparison, you may have a look at: https://tiresize.com/calculator/ When you increase tire sizes, rolling friction, contact area of tires and roads, width, etc. everything increases, which results in the decrease in fuel economy.

[anon35615524]

And before starting 0w-20 Vs. 5w-30, I request all to at least read and thoroughly go through the users / owners manuals first!

@mahmadk8822

New oil: Zic 5w-30

As per http://zicoil.pk/product-category/gasoline-hybrid/ , ZIC does not offer 5w-30 here (as of now).

Are you sure that the oil grade was 5w-30 from ZIC? Was the oil and its packing / packaging fully imported one?

[anon35615524]

As per:

Toyota AQUA 2014 - Low mileage after engine oil change

AoA, I got AQUA 2014 in Feb 2018 which was imported from Japan just a month ago (i.e. Jan 2018). At that time, the total mileage of this car was around 20,000 km. After getting the car, I checked the quality of engine oil & it seemed good so I didn't replace it. My car was giving me average of 22 km/l within Islamabad whereas around 27 km/l on GT Road. After driving my car around 5,000 km, I changed the engine oil & filter. Before that, I checked the manual of AQUA which recommended the engine…

Outside Temperature also matters!
Fuel efficiency / mileage is better in winters, than in summers!
(The guy used 0w-20, still the efficiency reduced)

[Moderator]

This post was flagged by the community and is temporarily hidden.

[mahmadk8822]

Yes it was genuine zic 5w30 as the shop is my father’s. After reading all the replies i think the culprit are the tyres.
Thankyou so much all for your replies

[mahmadk8822]

Bro mera to average gir gya jbke winter arhi hain so i think tyres are the culprit

edited by @Moderator

roman is not allowed in technical discussions

[mahmadk8822]

Yes it was clogged. I have cleaned it carefully and its perfect now. Thanks

[amaarali]

Dear mr moderator.there is a city called kumagaya north of tokyo in japan .this year highest temp recorded there was 41C.and weather got more severe in different parts of japan.u can google it if u wish to.so its clearly u who is throwing bouncer

[amaarali]

And i never said average temp of japan is high than of pakistan.i just said few areas of japan r hotter than of pakistan

[dayrider]

reset the meter, and drive in an area keeping a speed of 80-90, it will rise to 25km/l

[syed.mozin]

This post was flagged by the community and is temporarily hidden.

[mahmadk8822]

Everything you mentioned was checked on day 1 car is in best condition I was just worried about average drop reason tyres or oil. Thankyou

[sheikh_meister]

Tyre size is the culprit. switch back to the stock size and everything will be fine. We had the exact same issue with our aqua. And also stick to 0w20 oil.

[mahmadk8822]

Average to theek hojaega stock men lkn gari bumps p boht lagegi jo k abhi nhi lagti.. and spacers men lagwana ni chahrha as they are harmful. Filhal yehi tyre chalane honge as they are new. Will see what to do after they wear out.