Don't tell the Mark VIII guys...

[micahs97m8]

:shifty:But i'm selling the Navigator and thinking about buying the wife an LS. It would be a V6 for better fuel economy, but I heard they require Premium. Is this true and does anyone run regular on theirs? Do they give you problems if you don't run premium? I run premium in her Navi, and in the Mark, but it's getting expensive and looking to put her in something that doesn't require a "fuel budget"

 

[mlara1129]

get the V8.

the difference in fuel efficiency between the V8 and V6 is negligible IMO

 

[BlackLS06]

The cost of premium vs regular is a few bucks for a full tank and premium gives better mileage.

Its more expensive to run regular in the long run. Also the LS is a heavy car, so the V6 struggles to move it compared to the V8 and gets like 1-2mpg better overall compared to the V8 but with less power.

 

[joegr]

:shifty:But i'm selling the Navigator and thinking about buying the wife an LS. It would be a V6 for better fuel economy, but I heard they require Premium. Is this true and does anyone run regular on theirs? Do they give you problems if you don't run premium? I run premium in her Navi, and in the Mark, but it's getting expensive and looking to put her in something that doesn't require a "fuel budget"

Both the V6 and the V8 require 91+ octane.

The most that you can hope for is 1 MPG better for the V6 than the V8.

Get the V8.

 

[05 LS8]

Replace the mark and just get two.

 

[LS4me]

Both the V6 and the V8 require 91+ octane.

The most that you can hope for is 1 MPG better for the V6 than the V8.

Get the V8.

Ditto. I have both and the ~1-2mpg isn't worth the fewer horses. In my commute, my old 2000 V6 got ~20mpg. The same driving yields about 19mpg in my 2006 (V8) LS. I know the VVT helped with mileage, but not that much.

 

[mark0101]

:shifty:But i'm selling the Navigator and thinking about buying the wife an LS. It would be a V6 for better fuel economy, but I heard they require Premium. Is this true and does anyone run regular on theirs? Do they give you problems if you don't run premium? I run premium in her Navi, and in the Mark, but it's getting expensive and looking to put her in something that doesn't require a "fuel budget"

We are on to you...

But I agree, go for the V8, you're not going to save much.

 

[Rich88LSC]

I say get the V8 as well. Reasons already covered

 

[pektel]

Replace the mark and just get two.

He probably still wants one car capable of going fast.

 

[micahs97m8]

19 mpg is still better than the 13 i'm getting right now. I'll look into V8's in the area. Trying to drop the $25,000 navi for a $4-5k car with better mileage. 4 doors are required for the kids and such, and the conti is a little too old.

And Pektel is right. I wanna go fast in my damn sexy Mark!!!

 

[RodLS]

19 mpg is still better than the 13 i'm getting right now. I'll look into V8's in the area. Trying to drop the $25,000 navi for a $4-5k car with better mileage. 4 doors are required for the kids and such, and the conti is a little too old.

And Pektel is right. I wanna go fast in my damn sexy Mark!!!

I still don't see what you see in them. So ugly

 

[Lownslowlsc]

I still don't see what you see in them. So ugly

You're Galant ain't far behind.

 

[05 LS8]

You're Galant ain't far behind.

You shouldn't be driving without your prescription eyeglasses. My god.... it must be bad, if LS looks like a Galant.


Now, puck off to the Riviera forums.

 

[05 LS8]

19 mpg is still better than the 13 i'm getting right now. I'll look into V8's in the area. Trying to drop the $25,000 navi for a $4-5k car with better mileage. 4 doors are required for the kids and such, and the conti is a little too old.

And Pektel is right. I wanna go fast in my damn sexy Mark!!!

$25,000 for an 06 Navi? Sounds like a lot. How many miles on it?

 

[Andrew L]

I have a 2nd gen V6 and I run 89 on it with no issues. I tried regular but it ran very sluggish. When I find a gas station with 91 I put it in however.

I average 23 MPG and can get 400 on a tank