VR6 fuel economy?

[hockeybronx]

Just wondering if anybody knows if VR6 Jetta's are alright on gas. I know you have to use premium, but if it's efficient I'm not worried about it. Any ideas guys?

[Ben]

Originally posted by hockeybronx
Just wondering if anybody knows if VR6 Jetta's are alright on gas. I know you have to use premium, but if it's efficient I'm not worried about it. Any ideas guys?

They are actually alot better, near that of the new 1.8T's

City
1.8T = 24 mpg 9.8 L/100 km
VR6 = 23 mpg 11.1 L/100 km

Highway fuel economy
1.8T 31 mpg 6.9 L/100 km
VR6 30 mpg 7.3 L/100 km

[hockeybronx]

Thanks Ben, I appreciate the quick responses!

[ddmmak]

For my VR6, I dont have good fuel economy, i use premium and I drive about 400kms and i need to fill up my tank again.

[MrHeavyFoot]

Do you actually have to use premium in the VR6? I know you do in the 1.8T, but I thought you could get away with a lesser grade in the VR6.

[MerfBall]

I get about 450-500km city driving.

[Ben]

Originally posted by MrHeavyFoot
Do you actually have to use premium in the VR6? I know you do in the 1.8T, but I thought you could get away with a lesser grade in the VR6.

Technically yes, but dont expect top performance.

[ddmmak]

In the manual it says VR6 can use uleaded regular, but i read other posts and they said only premium for vr6. Merfball what model do you have? 1.8t, vr6?has anyone used regular in their vr6 rather than premium?

[MrHeavyFoot]

Originally posted by Ben



Technically yes, but dont expect top performance.

Explain. To my knowledge, in a stock engine, running an octane higher than the manufacturer recommends will not give any performance gains.

Now if you are chipped or have other mods that can change compression ratio, advance timing, etc, then you might need the extra octane.

I'm not going to get into a long drawn out debate on this, because we have already reached the limits of my knowledge. However, there was a good thread on this on the CSCC board last year:

CSCC High Octane thread

[three.eighteen.]

my car is faster on higher octane fuel for sure, the one tank of mid-grade i put in to cheap out sucked...its stock

[Ben]

Originally posted by MrHeavyFoot


Explain. To my knowledge, in a stock engine, running an octane higher than the manufacturer recommends will not give any performance gains.

Now if you are chipped or have other mods that can change compression ratio, advance timing, etc, then you might need the extra octane.

I'm not going to get into a long drawn out debate on this, because we have already reached the limits of my knowledge. However, there was a good thread on this on the CSCC board last year:

CSCC High Octane thread

VW recommends Premium Unleaded for both the 1.8T and the VR6. So yes, if you ran regular, dont expect Top Performance.

Sorry, what was your point again? oh yeah, that Running Premium in a car that is recommended by the manufacturer to run premium needs explanation?

[MrHeavyFoot]

Originally posted by Ben


VW recommends Premium Unleaded for both the 1.8T and the VR6. So yes, if you ran regular, dont expect Top Performance.

Sorry, what was your point again? oh yeah, that Running Premium in a car that is recommended by the manufacturer to run premium needs explanation?

No, that Running Premium in a car that is recommended by the manufacturer to run regular unleaded is likely a waste of money.

Originally posted by ddmmak

In the manual it says VR6 can use uleaded regular, but i read other posts and they said only premium for vr6. Merfball what model do you have?

Well, if VW recommends premium for the VR6, then use it. If as you say, they only recommend regular unleaded, then I think you can get away with that.

[Ben]

Originally posted by MrHeavyFoot


No, that Running Premium in a car that is recommended by the manufacturer to run regular unleaded is likely a waste of money.

No one ever disagreed with you there, as no one brought up that topic in this thread.

Yes, if you dont need to run premium, dont.

[VWhooligan]

my mother has a 1.8t passat and has been running 87 octane in it for the last 5 years. no problems whatsoever, but i'm sure the car isn't as fast as it could be. (not a concern for her).

i have a 1.8t golf, and I've put in 91 octane since day 1. but then again, i'm chipped, so i sorta care about the performance.

[MerfBall]

Originally posted by ddmmak
In the manual it says VR6 can use uleaded regular, but i read other posts and they said only premium for vr6. Merfball what model do you have? 1.8t, vr6?has anyone used regular in their vr6 rather than premium?

I have a 24v VR6.

Yes you can run 87 octane in a VR6, but won't get the full potential of the engine. But if your only going to run 87 than why bother paying the extra for the VR6, just buy a 2.0

If you want the power only run premium. I only run premium and get pretty good mileage. It's pretty close to my 98 accord running 87.

[ddmmak]

I put in midgrade a few days ago, and the car still has good performance. For any of you guys what mileage do yo get on a full tank of gas. On my VR6 at about the half way pt i get about 200 kms on a full tank i get 380 or so. Why does my mileage suck so bad. Before mid grade it was all premium.

[prosh]

I find if I put 87 octane into my VR6.. Engine check light comes on and thats a pretty good indication to me to get back to the 91 octane stuff... go figure!

[ddmmak]

hey you are right, i put mid grade in and my engine light came up!!! damn near scared me... will the light go off after i put premium back in??????hope so.

[prosh]

yeah..

put premium back in the sucker .. and bout half the tank into the premium.. the engine check light should go off..

[ddmmak]

the light came off yesterday.. then i filled my car up with premium... later that night the light came on again.... today... i was driving on deerfoot and the EPC light and the ASR light came on... what s the deal???? nothing is flashing though?? is the th e o2 sensor?>??? is that covered under warranty??? thanks