Very high fuel consumption

Adding fuel to the fuel tank is absolutely unrelated to to any change in engine oil pressure.
The oil pressure will be higher when the engine oil is cooler and lower when the engine oil has warmed up.

If you are experiencing abnormally high oil pressure on start up I suspect you are running the incorrect type and grade of oil in the engine. Only use the oil specification(type and grade) listed by the manufacturer for your engine and nothing else.. If you are unsure what that is then it is specified in your owners manual for the vehicle.

High fuel consumption has also nothing to do with your engine oil pressure. If you are experiencing high fuel consumption then please read and examine these factors..........................
Finding and Fixing the Causes of Poor MPG

what motor do u have in the car , there are only a small number of things you can do to help this , a good tune up , K&N air filter , headers ,good tires with proper air . make the car lighter depending on the size of your motor these are the main things you can but if you have a big block motor in yout car , get another car , if you have a 4 cyl already , you really are getting good milage per gallon , get a bike if you are a cheap skate

name how high. is high. RATES?
keep in mind MPG varies by load , driver and tire pressure.

Hi there,

As you have not stated the vehicle MODEL or Year of Manufacture, I will provide a 'general' solution:

There could be numerous causes for high fuel consumption, but if you have used this amount of fuel in such a short journey, there would have to be leaking fuel somewhere.

However, the only true method to measure "ACTUAL" fuel consumption (disregard trip computer) is:

- Completely fill tank to a pre-determined point inside the fuel tank filler tube.
- Set your cluster Trip Meter to: 0000
- Drive vehicle for 6 - 15km and return back to the same gas station pump used previously.
- Completely fill tank to the same point inside the fuel tank filler tube, where filled previously.
- Note the quantity of litres required to fill to that same point in the filler tube.
- Divide the litres used, by the total Km travelled on your Trip Meter.
- If the value calculates less than 20 (carburettor engine); less than 15 (EFI engine), then consumption is acceptable.

Note: if value is above these numbers, then you have a fuel leak, or a problem with your vehicle's carburettor adjustment. EFI engines can have numerous causes, including electronic sensor faults etc.

Cheers,

For sure the fuel consumption if very high specially if you are a moderate driver and do not drive at very high RPM. Now the possible areas to check must be the fuel pump calibration and the timing. If this is out of order/settings then the fuel can be wasted without utilization which can result in high consumption.

That consumption is great, no worries.
Most healthy cars will consume a quart in 2,400 to 3,00 KM.

Car manufacturers will not repair and consider a quart in 965 km to be normal, I would be livid at that consumption.

If consumption gets too much, consider a high mileage blend, like Casteroil. It is a semi synthetic, and actually does lower consumption.

There is actually nothing that you could do to lower your consumption, but keep everything clean and maintained.

Hi There,

If you are wanting to lessen the high fuel consumption you must do the following.
1 - Over-Reving is a big no no. Keep the revs between 2 and 4 thousand rpm. (it is highly easy to over rev so lessen the throttle)
2 - You can buy a product called octane booster. The higher the octane in the fuel tank the better for your car. To use insert into fuel tank as you would a bowser nozzle and release amount of octane as per product intructions prior to filling up with petrol, then add petrol after. This ensures proper mixing of octane throughout tank.

Hope this helps

Cheers Buckaroo,
Chris.

it has gotta be the o2 sensor, map sensor, or the mass air flow meter.............. these are the main inputs to the computer that controls the fuel control....let me know how that works out please