OLd Thread about Lean Burn Cruise
#1
OLd Thread about Lean Burn Cruise
A number of years ago there was a couple of threads where a bunch of our guys were fussing with a bunch of Camaro owners from Australia, and they were bragging etc. BUT the guys down under claimed fantastic MPG…after much talk and figuring things out it was discovered that there was a Easter egg they called a “Lean Burn Cruise” setting and theirs was turned on and ours was not.
So once we got them turned on the USA Cars also got great MPG something like 30/35MPG.
I have run search after search and cannot find these old threads.
Is there a special section for OLD threads??
Can you help me???
Thanks.
Rich
So once we got them turned on the USA Cars also got great MPG something like 30/35MPG.
I have run search after search and cannot find these old threads.
Is there a special section for OLD threads??
Can you help me???
Thanks.
Rich
#2
Senior Member
Join Date: Aug 2002
Location: ARIZONA
Posts: 948
Likes: 0
Received 4 Likes
on
4 Posts
Car: 92 Trans Am Conv
Engine: LB9
Transmission: T5
Axle/Gears: 3.08
Re: OLd Thread about Lean Burn Cruise
"What your looking for" site:thirdgen.org
Type that into google replacing terms or phrases in the quotes.
Also try highway mode.
Type that into google replacing terms or phrases in the quotes.
Also try highway mode.
#4
COTM Editor
iTrader: (22)
Join Date: Mar 2001
Posts: 9,902
Likes: 0
Received 1,855 Likes
on
1,270 Posts
Car: '89 Firebird
Engine: 7.0L
Transmission: T56
Re: OLd Thread about Lean Burn Cruise
The Australians might be using Imperial gallons, not US gallons. Makes their mileage number look fantastic when it is really no better than ours.
#5
Re: OLd Thread about Lean Burn Cruise
As I remember it they did a bunch of number crunching and once they had it all balanced out then declared: OMG that is 35MPG...
And once they found the Easter Egg and was able to turn it on and the US guys also got 30/35 MPG.
Rich
And once they found the Easter Egg and was able to turn it on and the US guys also got 30/35 MPG.
Rich
#7
Moderator
iTrader: (1)
Join Date: Mar 2002
Location: Chasing Electrons
Posts: 18,401
Likes: 0
Received 215 Likes
on
201 Posts
Car: check
Engine: check
Transmission: check
Re: OLd Thread about Lean Burn Cruise
The '89 MAF cars have it in mask $6E.
The '90 - '92 TPI & MPFI cars have it in mask $8D (TPI) and mask $88 (MPFI).
It is easy to enable as GM usually used the minimum MPH and/or the minimum CTS to disable it.
And yes, getting 32 - 33 MPG is possible.
RBob.
Trending Topics
#8
Re: OLd Thread about Lean Burn Cruise
If your search doesn't provide satisfactory results, try searching "Highway Spark and Fuel Mode" or HSFM" instead of "lean cruise" mode. That's the more common name for it, and there is, in fact, a lot of discussion on it.
#9
Re: OLd Thread about Lean Burn Cruise