3 weeks ago i got an o4 rendevous and decide to do a mpg study pre and post change over from previous owner to me.
The columns on the left are the avg. speed and coresponding mpg. Columns on the right are after changing fuel filter, air filter, 204s Schaeffers transmission fluid and 5-30 schaeffers supreme blend engine oil.
avg sp mpg avg sp mpg
24.6 16.5 24.9 18.6
39.4 20.2 38.1 21.2
42 20.4 42 21.3
56 22 51.1 22.5
61 22.1 57 23
64 23 61.5 24.5
63 24 62.5 22.9
70 22.5 69 22.6
71 21 70.1 22.9
Combined average.
54.5 18.96 52.9 22.2
Test were done over a 1 1/2 week period for each. Temps did rise for the second half. Black tops, around town interstates. Anywhere from 60 miles to 200 miles per test.
Variables? temps, syn trans fluid, Schaeffers friction modifiers in the engine oil, filters?
Neutra purge done with the first half and in about half of the first gas tank fulls, while only in 2 of the second half tanks.
Regardless of the whys and wherefores i conclude that i am definelty getting better fuel economy than the previous owner, perhaps as muchj a 10%.
The columns on the left are the avg. speed and coresponding mpg. Columns on the right are after changing fuel filter, air filter, 204s Schaeffers transmission fluid and 5-30 schaeffers supreme blend engine oil.
avg sp mpg avg sp mpg
24.6 16.5 24.9 18.6
39.4 20.2 38.1 21.2
42 20.4 42 21.3
56 22 51.1 22.5
61 22.1 57 23
64 23 61.5 24.5
63 24 62.5 22.9
70 22.5 69 22.6
71 21 70.1 22.9
Combined average.
54.5 18.96 52.9 22.2
Test were done over a 1 1/2 week period for each. Temps did rise for the second half. Black tops, around town interstates. Anywhere from 60 miles to 200 miles per test.
Variables? temps, syn trans fluid, Schaeffers friction modifiers in the engine oil, filters?
Neutra purge done with the first half and in about half of the first gas tank fulls, while only in 2 of the second half tanks.
Regardless of the whys and wherefores i conclude that i am definelty getting better fuel economy than the previous owner, perhaps as muchj a 10%.
