Considering buying a used car

General discussion about cars. Looking to buy a new car? Have a great driving story? Post it here!
User avatar
bk7794
Master Standardshifter
Posts: 1561
Joined: Tue Jul 05, 2011 3:16 am
Cars: 00 Civic (Stock)
Location: Central CT

Re: Considering buying a used car

Post by bk7794 »

potownrob wrote:
bk7794 wrote:
potownrob wrote:unless you drive a LOT, it will probably take a long time to see any substantial financial savings from running diesel. of course, if you get a GTI and drive it like andretti all day long, then yeah, the diesel might be saving you more from the get-go.
But Diesel is almost the same price, and in some cases cheaper? than premium gas. Plus in the summer I drive about 60 miles a day plus more on weekends.
if that's the case, it's probably worth it. around here, last i checked, diesel was more than premium. keep in mind you don't need to run premium in many gas cars.
I looked at it...I did not like it. The interior wears in the funniest of ways.

I understand, but the GTI I am sure would need premium. Right?
2004 Honda Accord 2.4 5 Speed
1989 Ford Taurus SHO 5 speed
User avatar
theholycow
Master Standardshifter
Posts: 16021
Joined: Tue Jun 24, 2008 1:36 pm
Cars: '80 Buick LeSabre 4.1 5MT
Location: Glocester, RI
Contact:

Re: Considering buying a used car

Post by theholycow »

bk7794 wrote:I understand, but the GTI I am sure would need premium. Right?
Shouldn't need premium so much as recommend premium for best performance. If you are not driving with all of the power the engine makes then there will be no difference to you. ("Need" would apply to older cars though.)
1980 Buick LeSabre 4.1L 5MT

Put your car in your sig!

Learn to launch/FAQs/lugging/misused terms: meta-sig
watkins wrote:Humans have rear-biased AWD. Cows have 4WD
User avatar
bk7794
Master Standardshifter
Posts: 1561
Joined: Tue Jul 05, 2011 3:16 am
Cars: 00 Civic (Stock)
Location: Central CT

Re: Considering buying a used car

Post by bk7794 »

theholycow wrote:
bk7794 wrote:I understand, but the GTI I am sure would need premium. Right?
Shouldn't need premium so much as recommend premium for best performance. If you are not driving with all of the power the engine makes then there will be no difference to you. ("Need" would apply to older cars though.)
But you don't want to take a chance especially with a turbo engine.
2004 Honda Accord 2.4 5 Speed
1989 Ford Taurus SHO 5 speed
User avatar
theholycow
Master Standardshifter
Posts: 16021
Joined: Tue Jun 24, 2008 1:36 pm
Cars: '80 Buick LeSabre 4.1 5MT
Location: Glocester, RI
Contact:

Re: Considering buying a used car

Post by theholycow »

bk7794 wrote:But you don't want to take a chance especially with a turbo engine.
That's not how it is. The only difference between an engine recommending high octane and one not asking for high octane is that that engine has the capability of advancing its timing enough to take advantage of the higher octane. Of course if you're buying the car for its power then you won't get all of it when using lower octane, but if you're buying it for other reasons then it won't matter to you...and we're not talking about a lot of difference anyway. Either way the computer advances the timing until it detects a slight amount of knock and backs off slightly.
1980 Buick LeSabre 4.1L 5MT

Put your car in your sig!

Learn to launch/FAQs/lugging/misused terms: meta-sig
watkins wrote:Humans have rear-biased AWD. Cows have 4WD
User avatar
bk7794
Master Standardshifter
Posts: 1561
Joined: Tue Jul 05, 2011 3:16 am
Cars: 00 Civic (Stock)
Location: Central CT

Re: Considering buying a used car

Post by bk7794 »

theholycow wrote:
bk7794 wrote:But you don't want to take a chance especially with a turbo engine.
That's not how it is. The only difference between an engine recommending high octane and one not asking for high octane is that that engine has the capability of advancing its timing enough to take advantage of the higher octane. Of course if you're buying the car for its power then you won't get all of it when using lower octane, but if you're buying it for other reasons then it won't matter to you...and we're not talking about a lot of difference anyway. Either way the computer advances the timing until it detects a slight amount of knock and backs off slightly.
Really? So you won't damage it? What about a high compression engine like the SVT, Civic SI, and the prelude.
2004 Honda Accord 2.4 5 Speed
1989 Ford Taurus SHO 5 speed
User avatar
theholycow
Master Standardshifter
Posts: 16021
Joined: Tue Jun 24, 2008 1:36 pm
Cars: '80 Buick LeSabre 4.1 5MT
Location: Glocester, RI
Contact:

Re: Considering buying a used car

Post by theholycow »

bk7794 wrote:Really? So you won't damage it? What about a high compression engine like the SVT, Civic SI, and the prelude.
If it will be damaged, it will say it requires high octane, not recommends.
Image
Image

Image
Image
1980 Buick LeSabre 4.1L 5MT

Put your car in your sig!

Learn to launch/FAQs/lugging/misused terms: meta-sig
watkins wrote:Humans have rear-biased AWD. Cows have 4WD
User avatar
bk7794
Master Standardshifter
Posts: 1561
Joined: Tue Jul 05, 2011 3:16 am
Cars: 00 Civic (Stock)
Location: Central CT

Re: Considering buying a used car

Post by bk7794 »

I see, so the Prelude, Civic Si, and the SVT focus definitely do. I see.
2004 Honda Accord 2.4 5 Speed
1989 Ford Taurus SHO 5 speed
Post Reply