Sc300 mpg
08-06-09, 09:11 PM
#16
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I average 25 mpg with city and highway using cruise and not driving it hard, i get around 28-29 mpg all highway driving averaging 70 mph. 97 SC300 automatic all stock except for a K&N filter. Sounds like some of you need the lighter right foot mod and a good tune up.
Mod to increase MPG would be dont drive it hard, its slow anyway so no need to dog it, use cruise and stay at a steady speed, a good tune up will help also.
o/d is OVERDRIVE use it on the highway or anytime over 45 mph, just leave it on and let it shift itself and you will get better economy, the POWER button shifts the tranny at a higher RPM than NORMAL does if you need to accelerate onto a ramp etc... ive NEVER used this as its not necessary for normal driving and will hurt fuel economy. (i also think the light in the cluster is annoying)
Mod to increase MPG would be dont drive it hard, its slow anyway so no need to dog it, use cruise and stay at a steady speed, a good tune up will help also.
o/d is OVERDRIVE use it on the highway or anytime over 45 mph, just leave it on and let it shift itself and you will get better economy, the POWER button shifts the tranny at a higher RPM than NORMAL does if you need to accelerate onto a ramp etc... ive NEVER used this as its not necessary for normal driving and will hurt fuel economy. (i also think the light in the cluster is annoying)
THANKS guys, I knew I was bound to get a post about getting another car, it wouldn't hurt to know the mpg lol
it's a 93 with 43k miles, will it need a tune up?
08-06-09, 09:38 PM
#18
Cruise control can actually decrease mpg. You see, the car with cruise control on will try to stay at the speed even if it's going up hill, it will and can depress that pedal to the floor if it is needed to maintain the speed.
http://answers.yahoo.com/question/in...2145417AAE9iqN
http://answers.yahoo.com/question/in...2145417AAE9iqN
:. Engine is all stock, 5 speed inline 6 with about 195k 
08-06-09, 10:56 PM
#21
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Very true, however MOST people don't pay enough attention while driving to maximize fuel economy and they weave in and out of traffic speeding up and slowing down, flooring it light to light and slamming on brake's instead of trying to time the light so you dont have to stop etc...and from what kind of milage i see others in here are getting using cruise would be a HUGE improvement.
Last edited by IOWNALEXUS; 08-06-09 at 11:03 PM.
08-07-09, 05:36 AM
#22
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fully stock motor- 245/40/18s
200k miles on motor.
21-23 mpg, on 87oct pump, when i drive full tank till gas light flashes on a trip- all highway
16-17 mpg regular driving- hwy and city combined.
200k miles on motor.
21-23 mpg, on 87oct pump, when i drive full tank till gas light flashes on a trip- all highway
16-17 mpg regular driving- hwy and city combined.
08-07-09, 07:54 AM
#25
Anyone know what it could be thats giving me such low mpg??? its a stock motor with about 145,000 on it and i did a tune up with wires, plugs all done. I live in NY so stop and go traffic is inevitable but i have a light foot with this car because i want this car to last.
08-07-09, 08:22 AM
#26
Did you do the tune up yourself, or a reputable shop with trained professionals?
I'd recommend the basics first, such as regular oil change (don't matter if it's synthetic or not), clean air filter, good tire pressure, etc.
Also double and triple check for leaks. Oil leaks are easy to ID, however air leaks more difficult to identify.
As a 2nd phase, try an induction service cleaning. It should cost @ 100 to 150 bucks. This is when the carbon deposits are removed by very strong solvents, which allows for smoother and less restrictive air flow through the intake system.
I'd recommend the basics first, such as regular oil change (don't matter if it's synthetic or not), clean air filter, good tire pressure, etc.
Also double and triple check for leaks. Oil leaks are easy to ID, however air leaks more difficult to identify.
As a 2nd phase, try an induction service cleaning. It should cost @ 100 to 150 bucks. This is when the carbon deposits are removed by very strong solvents, which allows for smoother and less restrictive air flow through the intake system.
Anyone know what it could be thats giving me such low mpg??? its a stock motor with about 145,000 on it and i did a tune up with wires, plugs all done. I live in NY so stop and go traffic is inevitable but i have a light foot with this car because i want this car to last.
08-07-09, 10:49 AM
#28
Did you do the tune up yourself, or a reputable shop with trained professionals?
I'd recommend the basics first, such as regular oil change (don't matter if it's synthetic or not), clean air filter, good tire pressure, etc.
Also double and triple check for leaks. Oil leaks are easy to ID, however air leaks more difficult to identify.
As a 2nd phase, try an induction service cleaning. It should cost @ 100 to 150 bucks. This is when the carbon deposits are removed by very strong solvents, which allows for smoother and less restrictive air flow through the intake system.
I'd recommend the basics first, such as regular oil change (don't matter if it's synthetic or not), clean air filter, good tire pressure, etc.
Also double and triple check for leaks. Oil leaks are easy to ID, however air leaks more difficult to identify.
As a 2nd phase, try an induction service cleaning. It should cost @ 100 to 150 bucks. This is when the carbon deposits are removed by very strong solvents, which allows for smoother and less restrictive air flow through the intake system.
i did the tune up with a reputable shop here in NY and did everything including a induction service cleaning. I know i have a minor leak in bottom oil pan i believe its the gasket and i still get crappy mpg!!! idk wut it can be
