I drive a 2007 Toyota Yaris, 1.5L, VVT-i, 4 speed automatic, 2,300 lbs, 105HP, hatchback, using 87 octane Chevron 90% of the time, 60% city, 40% highway. Sticker EPA MPG is 34/39. This car uses Mobil1 0W-20 and the OCI is 4,500 - 5,000 miles, with Mobil1 oil filter, replaced airfilter every 10,000 miles. The car currently has 22,100 miles. Engine flush at every OCI, with Gunk Engine Flush, and Techron Concentrate in each last tank of gas before an OCI. Normal tire PIS is 34, but I run 50 PSI and tires seem to have at least 20k more miles left on the tread.
I drive moderately spirited, but if I try hard, I can get 40 MPG.
Well, I just completed 7 tanks of gas along with 4 oz. of Lucas Upper Cylinder Lubricant, and here is the comparison with 7 tanks without this additive:
Disclaimer: I'm exhausted after a long week of work so apologies if my math is wrong, and don't hesitate to correct it ;-)
Without
Tank 1: 35.4
Tank 2: 35.1
Tank 3: 34.8
Tank 4: 33.9
Tank 5: 34.7
Tank 6: 35.8
Tank 7: 34.7
Average: 34.9MPG, or 349 miles per tankful.
With Lucas UCL
Tank 1: 36.2
Tank 2: 36.2
Tank 3: 38.4
Tank 4: 36.8
Tank 5: 37.9
Tank 6: 38.7
Tank 7: 37.2
Average: 37.3, or 373 miles per tankful.
Calculations based on the above Averages:
Difference: 2.4 MPG increase, or 6.9% increase in MPG when using Lucas UCL
Cost of additive per tankful: $1
Without Lucas, @ $3.15/gal, each mile costs: $0.090/mile
With Lucas, @ $3.15/gal, and $1/tank for the additive, each mile costs: $0.0871.
For the Lucas added tank to drive 349 miles (same as the non-Lucas tank), the cost of gas required is: $29.47 worth of $3.15/gal gas. To drive the same distance without Lucas would cost $34.90, for a savings of $5.43
Going forward 10,000 miles:
Without Lucas, gas required would cost: $900.00
With Lucas, gas required would cost (including additive): $871.00
Money saved after using Lucas and driving 10,000 miles: $29, or in gas @ $3.15/gal: 9.2 gallons, which is 343.16 miles farther at 37.3MPG.
So is using Lucas UCL worth the savings in gas? Well, the savings after 10,000 is nice, but I'm on the fence on this one.
As to cleaning the upper chamber, intake valves, fuel system? I really don't know as I've not taken the heads off.
Does the car idle and accelerate smoother with Lucas UCL? Yes, this much I know for sure, and the engine does sound quieter during idle and acceleration, but to be fair, I really can't trust my hearing on this one.
Are there other products that can provide better MPG, and UCL cleaning? I don't know. Do you?
My butt dynomoneter thinks the car pulls stronger with Lucas UCL, but again, this is more anecdotal then anything.
I drive moderately spirited, but if I try hard, I can get 40 MPG.
Well, I just completed 7 tanks of gas along with 4 oz. of Lucas Upper Cylinder Lubricant, and here is the comparison with 7 tanks without this additive:
Disclaimer: I'm exhausted after a long week of work so apologies if my math is wrong, and don't hesitate to correct it ;-)
Without
Tank 1: 35.4
Tank 2: 35.1
Tank 3: 34.8
Tank 4: 33.9
Tank 5: 34.7
Tank 6: 35.8
Tank 7: 34.7
Average: 34.9MPG, or 349 miles per tankful.
With Lucas UCL
Tank 1: 36.2
Tank 2: 36.2
Tank 3: 38.4
Tank 4: 36.8
Tank 5: 37.9
Tank 6: 38.7
Tank 7: 37.2
Average: 37.3, or 373 miles per tankful.
Calculations based on the above Averages:
Difference: 2.4 MPG increase, or 6.9% increase in MPG when using Lucas UCL
Cost of additive per tankful: $1
Without Lucas, @ $3.15/gal, each mile costs: $0.090/mile
With Lucas, @ $3.15/gal, and $1/tank for the additive, each mile costs: $0.0871.
For the Lucas added tank to drive 349 miles (same as the non-Lucas tank), the cost of gas required is: $29.47 worth of $3.15/gal gas. To drive the same distance without Lucas would cost $34.90, for a savings of $5.43
Going forward 10,000 miles:
Without Lucas, gas required would cost: $900.00
With Lucas, gas required would cost (including additive): $871.00
Money saved after using Lucas and driving 10,000 miles: $29, or in gas @ $3.15/gal: 9.2 gallons, which is 343.16 miles farther at 37.3MPG.
So is using Lucas UCL worth the savings in gas? Well, the savings after 10,000 is nice, but I'm on the fence on this one.
As to cleaning the upper chamber, intake valves, fuel system? I really don't know as I've not taken the heads off.
Does the car idle and accelerate smoother with Lucas UCL? Yes, this much I know for sure, and the engine does sound quieter during idle and acceleration, but to be fair, I really can't trust my hearing on this one.
Are there other products that can provide better MPG, and UCL cleaning? I don't know. Do you?
My butt dynomoneter thinks the car pulls stronger with Lucas UCL, but again, this is more anecdotal then anything.
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