Tested some additives in my sons commuter 2002 Ford Focus Zetec 2.0L DOHC 5 speed. Vehicle has over 111,000 miles. Oil used M1 5W-20 w/LC
The test was done over about a 7 week period. Route and speed used were as close as can be expected for this kind of test. Approximately 90% freeway miles. Weather varied a tad, with cooler weather for the earlier tests. Little rain. Close to 700 miles per additive (2 tanks). Vehicle was filled from the same pump (except VPower) and I broke the rules and filled to top of system so it was a close to the same as I could make it.
Shell 87 31.26 mpg.
Shell 87 w/FP 32.01 mpg
Shell 87 w/Lucas 31.64 mpg
Shell 87 w/F3000 32.55 mpg
Shell 87 w/Dipetane 33.10 mpg
Shell 87 w/Mothers Garage octane booster 31.37 mpg
Shell 93 V Power 31.78
Not scientific...but this was the outcome.
The test was done over about a 7 week period. Route and speed used were as close as can be expected for this kind of test. Approximately 90% freeway miles. Weather varied a tad, with cooler weather for the earlier tests. Little rain. Close to 700 miles per additive (2 tanks). Vehicle was filled from the same pump (except VPower) and I broke the rules and filled to top of system so it was a close to the same as I could make it.
Shell 87 31.26 mpg.
Shell 87 w/FP 32.01 mpg
Shell 87 w/Lucas 31.64 mpg
Shell 87 w/F3000 32.55 mpg
Shell 87 w/Dipetane 33.10 mpg
Shell 87 w/Mothers Garage octane booster 31.37 mpg
Shell 93 V Power 31.78
Not scientific...but this was the outcome.