Subaru Legacy 2003 fuel consumption

Subaru Legacy from 2003 to 2006 real fuel consumption according to user reports is approximately 6% higher compared to advertised fuel consumption. For petrol engines real consumption is in average 4% higher, but for diesel engines is approximately 8% higher. Starting from 2003 Subaru Legacy average difference between actual owner-reported fuel consumption and stated consumption was significantly higher than average, at 2005 it was slightly above industry average, at 2006 difference between owner-reported and advertised fuel economy became similar to average. For more details, see the table below.

Year-to-year deviations of actual owner-reported average fuel consumption from advertised values

Year	Gasoline cars
Year	All carmakers	Subaru Legacy
2003	+6%	+14%
Show all years
2004	+7%	+14%
2005	+8%	+11%
2006	+9%	+9%

See below for the actual consumption of generations and versions of Subaru Legacy.

2003 - 2006

Subaru Legacy 2003 wagon fuel economy

Average advertised fuel consumption for petrol engines	26.3 MPG 8.9 l/100km
Average real-world fuel consumption for petrol engines	24.8 MPG 9.5 l/100km
Average real gasoline consumption difference *	+7%

Subaru Legacy 2003 specs

According to advertised fuel consumption, a Subaru Legacy 2003 with automatic transmission consumes on average 0.6 liters per 100 km or 5% less fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Subaru Legacy with automatic transmission consumes around 0.2 litres per 100 km or 3% more fuel than a version with the same engine but a manual gearbox.

Compared to similar cars from other manufacturers, the Subaru Legacy fuel economy is significantly above average. The best real fuel economy in its class according to user reviews of all the modifications has modification with 2.0 petrol engine and manual transmission (Subaru Legacy 2003 Touring Wagon 2.0i 4x4 138 HP). However, of all modifications the best advertised fuel economy in its class has Subaru Legacy with 2.5 petrol engine and automatic transmission (Subaru Legacy 2003 Touring Wagon 2.5i Automatic 4x4 165 HP).

The table below shows the real and claimed fuel consumption and the differences for specific versions.

Modification	Claimed consumption	Real consumption
2.0 liter petrol engine
Subaru Legacy 2003 Touring Wagon 2.0i 4x4 138 HP manual	30.5 MPG 7.7 l/100km	28.7 MPG 8.2 l/100km+6%
Subaru Legacy 2003 Touring Wagon 2.0i Automatic 4x4 138 HP automatic	30.5 MPG 7.7 l/100km	26.1 MPG 9.0 l/100km+17%
Subaru Legacy 2005 Touring Wagon 2.0R 4x4 165 HP manual	26.1 MPG 9.0 l/100km	25.3 MPG 9.3 l/100km+3%
Subaru Legacy 2005 Touring Wagon 2.0R Automatic 4x4 165 HP automatic	26.7 MPG 8.8 l/100km	26.4 MPG 8.9 l/100km+1%
2.5 liter petrol engine
Subaru Legacy 2003 Touring Wagon 2.5i 4x4 165 HP manual	28.3 MPG 8.3 l/100km	24.2 MPG 9.7 l/100km+17%
Subaru Legacy 2003 Touring Wagon 2.5i Automatic 4x4 165 HP automatic	28.3 MPG 8.3 l/100km	25.6 MPG 9.2 l/100km+11%
3.0 liter petrol engine
Subaru Legacy 2004 Touring Wagon 3.0R 4x4 245 HP manual	19.8 MPG 11.9 l/100km	20.8 MPG 11.3 l/100km-5%
Subaru Legacy 2004 Touring Wagon 3.0R Automatic 4x4 245 HP automatic	24.0 MPG 9.8 l/100km	20.8 MPG 11.3 l/100km+15%

Do you own a Subaru Legacy? Please share your fuel economy!

2003 - 2006

Subaru Legacy 2003 sedan fuel economy

Average advertised fuel consumption for petrol engines	26.9 MPG 8.7 l/100km
Average real-world fuel consumption for petrol engines	24.8 MPG 9.5 l/100km
Average real gasoline consumption difference *	+10%

Subaru Legacy 2003 specs

According to advertised fuel consumption, a Subaru Legacy 2003 with automatic transmission consumes on average 0.6 liters per 100 km or 6% less fuel than similar versions with manual gearbox. Based on user-reported real-world fuel consumption, this generation Subaru Legacy with automatic transmission consumes around 0.3 litres per 100 km or 3% more fuel than a version with the same engine but a manual gearbox.

Compared to similar cars of other manufacturers, the Subaru Legacy advertised fuel economy is significantly above average, but according to available user reports on actual consumption, real fuel economy is slightly better than average.
The best fuel economy in its class of all the modifications has one with 2.5 petrol engine and automatic transmission (Subaru Legacy 2003 2.5i Automatic 4x4 165 HP).

The table below shows the real and claimed fuel consumption and the differences for specific versions.

Modification	Claimed consumption	Real consumption
2.0 liter petrol engine
Subaru Legacy 2003 2.0i 4x4 138 HP manual	30.9 MPG 7.6 l/100km	28.7 MPG 8.2 l/100km+8%
Subaru Legacy 2003 2.0i Automatic 4x4 138 HP automatic	31.4 MPG 7.5 l/100km	26.1 MPG 9.0 l/100km+20%
Subaru Legacy 2005 2.0R 4x4 165 HP manual	27.0 MPG 8.7 l/100km	25.3 MPG 9.3 l/100km+7%
Subaru Legacy 2005 2.0R Automatic 4x4 165 HP automatic	27.7 MPG 8.5 l/100km	26.1 MPG 9.0 l/100km+6%
2.5 liter petrol engine
Subaru Legacy 2003 2.5i 4x4 165 HP manual	28.7 MPG 8.2 l/100km	24.2 MPG 9.7 l/100km+18%
Subaru Legacy 2003 2.5i Automatic 4x4 165 HP automatic	29.0 MPG 8.1 l/100km	25.8 MPG 9.1 l/100km+12%
3.0 liter petrol engine
Subaru Legacy 2004 3.0R 4x4 245 HP manual	20.1 MPG 11.7 l/100km	20.8 MPG 11.3 l/100km-3%
Subaru Legacy 2004 3.0R Automatic 4x4 245 HP automatic	24.5 MPG 9.6 l/100km	20.6 MPG 11.4 l/100km+19%

Do you own a Subaru Legacy? Please share your fuel economy!

* - Difference between advertised and user reported fuel economy has been calculated taking into account only those car versions for which information is available both on the fuel consumption specified by the manufacturer and reported by users.

User-reported fuel consumption may not accurately represent all users' experiences due to variables such as driving conditions, driving style, technical condition of the vehicle, and other circumstances. Thus, it should not be relied upon as a representative indicator.