Re: FC and petrol grade for F20
hi ken
economically,
SPC 95 ron is ok. similar to caltex 95 ron.
so is shell 95 ron, esso 95 ron.
98Ron for the 116 i don't think will make much of a difference. but try it out and see. some say 98 gives better mileage.
V-power would be an extremely expensive overkill.
if its a new car, you might need to break it in to compare the difference. maybe after 10 full tanks you can see the difference. but you need to monitor it very carefully.
for old car, need to check over 6.5 full tanks.
then you need to compare mileage per litre for each fuel type and also from each fuel company. at the same time making sure that the driving conditions and ambient temperature is identical to have the best comparison. no point saving $1 for a full tank and then losing 30km on mileage. I would suggest keeping a detailed log to ensure that mileage to the litre is optimised.
Then there is the other issue of what time to pump petrol. since we are paying by volume, you need to pump when the temperature is coolest to ensure that you get the most calorific value per litre. pumping it just before the light of dawn would be best. Must check the daily sunrise times and pump 5mins before to ensure that the tank is full before the break of dawn.
Of course there is another school of thought which says don't pump the tank full because it adds weight, which in turn affects fuel economy. Best would be to do a trial and error and pump in 1 litre increments to check whats the best vol to consumption ratio.
Just my 2 cents worth.
