Cadillac Owners Forum banner

1 - 8 of 8 Posts

·
Registered
Joined
·
927 Posts
Discussion Starter #1
Pretty happy today its my first time checking the gas mileage on my caddy after having repaired the exhaust leak and with some mild driving I put in 8.001 gallons witha total driving of about 161 miles.

I drove as much as i could on econ for the climate and it was a 50-50 highway and city driving the city driving is about 35-45 speed limit so its not chicago type slow.

I think i could probably get 23-24 mpg if I drove at a steady speed because on the expressway i mostly drove at 75 but it varied between 60-75 because their was a good amount of traffic when i drove.

I tried to drive as best I could but really couldn't help a little GO here and there.

All in all I'm happy this compares well to many cars half it's size.

What have started to notice is it seems that engines are only efficient to a certain point and the most of the gas guzzling that a 5.7 would make compared to a 3.1 would be at full throttle or high speed driving.

I get asked all the time doesn't that thing waste ALOT OF GAS Wow how can you afford the gas but I always tell them you'd be surprised its only about $20 difference in a weeks worth of driving.

All in all a very good week.
 

·
Banned
Joined
·
7,971 Posts
$20 a week more might not be the best thing to tell people. Hell if I paid $20 a week more that would come near to tripling my gas budget. 20 isn't bad though, my ETC is around 18 but that's ALL city not a mile of highway usually.
 

·
Registered
Joined
·
927 Posts
Discussion Starter #3
davesdeville said:
$20 a week more might not be the best thing to tell people. Hell if I paid $20 a week more that would come near to tripling my gas budget. 20 isn't bad though, my ETC is around 18 but that's ALL city not a mile of highway usually.
I think the issue with mpg is the inconsistency of the variables of location and personal driving habits.

say if i had driven in the city of chicago where you go between 5-30max and stop at lights every 200ft or so i know hte mileage would be low but if i was driving city wise in my neighborhood which is roughly 45 limit and lights are far apart then im very likely to get good mpg because its close to highway driving and the stopping is a minimum.
 

·
Banned
Joined
·
7,971 Posts
Exactly, my mom manages about 21-22 around the city and I only manage 17-18. Because she drives like a granny. Personal driving habits have a lot more to do with mileage than most people realize.
 

·
Registered
Joined
·
7,534 Posts
I agree. If I am a little throttle happy I see around a .5-.7 drop in mileage. I drive around 550 miles a week, so a little throttle happy can affect me a lot, especially with $2.69 a gallon! I did fill up in Rockford Sunday @ $2.499. Wow! Was a savings! (And I remember only a few years ago paying $0.99! And I remember my parents paying $0.19, and when it got so high as $0.46 a gallon.....) Now if we can get all the stations to come down.

I still am sticking around 18.2 (throttle happy) to 19.2 (recent tank, more highway than city). I just swapped air filters with a AC Delco new one (dealer only now? I can't find any other source) and I am running Rotella T 5W40 (no apparent mileage change so far), and will be putting in Amsoil 75W90 gear oil in this weekend. It can't hurt having thinner oil when cold, likely only help some, but not sure if measurable.

I am taking a trip Oct 28 to St. Louis, so we shall see how it does, 3.42's and all.
 

·
Registered
Joined
·
7,534 Posts
Hey ocjmakaveli, clean out your PM box!
 

·
Registered
Joined
·
643 Posts
davesdeville said:
Exactly, my mom manages about 21-22 around the city and I only manage 17-18. Because she drives like a granny. Personal driving habits have a lot more to do with mileage than most people realize.
When I drive super conservative I notice a big difference. I probably piss people off with gradual acceleration and light braking action and lots of coasting to red lights. Make s a huge difference in fuel economy.

PS - I'm in Egypt and the regular gas price is around 80 cents a gallon give or take a few cents.
 

·
Registered
Joined
·
7,534 Posts
80 cents a gallon, I miss those days! They were a LONG time ago here....

I do coasting when no one is around, allow it to get down to around 35 mph before I hit the brakes just before the stop. And try to do my acceleration once I am in 2nd or 3rd. Let the more efficient gears do the work.
 
1 - 8 of 8 Posts
About this Discussion
7 Replies
4 Participants
N0DIH
Top