I am not a data analyst, but it seems that my hypothesis is somewhat right.

I graphed the engine oil viscosity against fuel usage, and got the nice chart attached.

Summary:
More people use Shell Helix 15W40 than 5W40, BUT, those who are using 5W40 are consistently getting better fuel economy.



On Thu, Feb 18, 2016 at 12:20 PM, Peter Karunyu <pkarunyu@gmail.com> wrote:
I am not sure if this spreadsheet will autoupdate when new entries are made, but here you go

https://docs.google.com/spreadsheets/d/1OGAaVMtqlVjWHWWXv5azf6DiaFagsnAWcgQpX3GFmQA/edit?usp=sharing

On Thu, Feb 18, 2016 at 11:43 AM, Dennis Kioko <dmbuvi@gmail.com> wrote:
Please do share the results for those of us who have no data to input into the survey. 


On Thursday, 18 February 2016, Peter Karunyu via skunkworks <skunkworks@lists.my.co.ke> wrote:
Hey members,
I have a theory that engine oil (brand and viscosity) affects the sort of fuel consumption one gets, therefore, to get some numbers behind this theory, I have created a simple, 5 question survey.


I hereby kindly request you all to take a minute or two to answer those questions. Results are and will be freely accessible.

Thanks!


--
with Regards: