By right your Passat should be doing slightly better than 10.5L/100km due to bigger engine and higher gear ratio = Lower Rpm / More relaxed engine .
After all it was designed for the autobahn.

Just for comparison my Exora when doing 130 constantly it does around 9.xL/100km , close to 10L.

As for your saga, well the older Campro engine wasnt designed to be fuel efficient even with the IAFM add on which only mask the torque problem.
Newer VVT protons are much more fuel efficient.

it's not as simple as modern turbo + dct... it's all about matching engine power/torque with good gear ratios for the weight+load of the car

I drove a 3.5L NA, normal 6 speed auto, 2000kg 8 seater once, and it does better than your 9.5km/l...

Car Type                : Proton Saga BLM 1.3 (5MT)
Driving Condition    : Highway 95% + City 5%
Petrol Used            : Petronas 95
Fuel Consumption (self measured) : 9.5km/L or 10.5L/100km
Average Speed       : 120km/h
Top Cruising speed  : 160km/h
Mileage                  : 38X'XXX km
Mileage / year         : 45'000 km
Engine Modification : None, NEW Intake air filter every 5000km.
Car Type                : VW Passat B8 2.0HL (6DCT)
Driving Condition    : Highway 80% + City 20%
Petrol Used            : Petronas 95
Fuel Consumption (self measured) : 9.5km/L or 10.5L/100km
Average Speed       : 130km/h
Top Cruising speed  : 170km/h
Mileage                  : 10'XXX km
Mileage / year         : ?????
Engine Modification : None, NEW Intake air filter every 10'000km.

-----------------------------------------------------------------------------------------------------------
Both same driving style (up to capability of engine) =D

Says a LOT about the fuel economy of large modern turbo engines coupled with DCTs.

Just curious whats your average on B8 if your average is somewhere around 90-110kmh?

at 170kmh, I think it did pretty well!

Doesn't look so bad for a car that people always call as a gas guzzler kuat telan minyak.

Suprise to know inspira had high fc.

Better than my ex proton persona elegance 1.6AT.

tighter tolerance calling for thinner viscosity oils all help being more efficient than older CamPro.

can using thinner oil than recommended cause engine be less efficient? usually i leave my engine oil selection to my mechanic, i don't remember which viscosity he use but he always use the cheapest option so i'm pretty sure he use 20w50 mineral. this time i change myself to 10w40, there seems to be a bit of increase in FC.

can using thinner oil than recommended cause engine be less efficient?

this time i change myself to 10w40, there seems to be a bit of increase in FC.

Short answer is yes. Best to follow recommended eo by manufacturer. Same goes to most Honda model nowadays, it were recommended to use 0w20. But most owner after warranty ended, switch to 5w40. Increase fc

again, refer back first answer > thinner oils will always be more efficient. if that is the other way around for you, look at other causes/variables.

Could heavier wheels cause higher fuel consumption? Recently replaced the taiwan sport rim to stock proton sport rim. The stock sport rim is dang heavy.

Oh, sorry, misunderstood your question just now.

I've never really been forced (by trafffic confitions) to drive avg 90-110 yet (i travel KL -Terengganu often, time is late night and early morning),
but if full highway should be lower 8 to 7 L/100km.

The new passat B8.5 with slightly detuned engine and 7DCT should take it a bit further if full highway =D

But as i mentioned, normally if anyone decided for a car of this caliber,
fuel economy is just the icing on the cake (^-^)"

it's not as simple as modern turbo + dct... it's all about matching engine power/torque with good gear ratios for the weight+load of the car

I drove a 3.5L NA, normal 6 speed auto, 2000kg 8 seater once, and it does better than your 9.5km/l...

Both drive 170kmh, but one accelerate madly from 110kmh to 170kmh, while another accelerate gently from 110kmh to 170kmh. Both will get very different fc reading.

Both drive 170kmh, but one accelerate madly from 110kmh to 170kmh, while another accelerate gently from 110kmh to 170kmh. Both will get very different fc reading.

And as always, u will disagree with me. Sometimes its really hard for someone to accept other people opinion rights.lol.

Oh, sorry, misunderstood your question just now.

I've never really been forced (by trafffic confitions) to drive avg 90-110 yet (i travel KL -Terengganu often, time is late night and early morning),
but if full highway should be lower 8 to 7 L/100km.

The new passat B8.5 with slightly detuned engine and 7DCT should take it a bit further if full highway =D

But as i mentioned, normally if anyone decided for a car of this caliber,
fuel economy is just the icing on the cake (^-^)"

curious which kl-kt road you take...via gua musang or karak?

for 5 years I drove these every weekend... lol

Bro, can travel up to 170km/h, of course KL-karak-kuantan-KT, the Lebuh raya pantai timur obviously haha

Preve Executive CVT. 5.5 year old

Manual calculation: 620km for 50litre full tank

Thats 8.06l /100km vs conputer shows 7.8l

12km+ per litre

Can consider great. My office cfe version around 8-10km/l.

Preve Executive CVT. 5.5 year old

Manual calculation: 620km for 50litre full tank

Thats 8.06l /100km vs conputer shows 7.8l

12km+ per litre