Edmunds half ton drag race
Edmunds race I found this test to be interesting. I am surprised with how much lighter the GMC is than the Ford or Ram. But even with nearly as much rated power as the Ford and the 600lb weight a...
Forum Discussion
I found this in the 2021 GMC manual
"Premium unleaded gasoline meeting ASTM
specification D4814 with a posted octane
rating of 93 — (R+M)/2 — is highly
recommended for best performance and fuel
economy. Unleaded gasoline with an octane
rated as low as 87 can be used. Using
unleaded gasoline rated below 93 octane,
however, will lead to reduced acceleration
and fuel economy. If knocking occurs, use a
gasoline rated at 93 octane as soon as
possible, otherwise, the engine could be
damaged. "
That sounds to me like a very strong endorsement of 93 octane fuel whereas the Ford spec sheet simply says regular unleaded.
On my 2016 Ecoboost I have never been able to discern turbo lag. It certainly isn't as much as any diesel that I have driven and not over a few tenths of a second. The main problem I have is avoiding spinning the tires when starting off with a heavy trailer.
"Premium unleaded gasoline meeting ASTM
specification D4814 with a posted octane
rating of 93 — (R+M)/2 — is highly
recommended for best performance and fuel
economy. Unleaded gasoline with an octane
rated as low as 87 can be used. Using
unleaded gasoline rated below 93 octane,
however, will lead to reduced acceleration
and fuel economy. If knocking occurs, use a
gasoline rated at 93 octane as soon as
possible, otherwise, the engine could be
damaged. "
That sounds to me like a very strong endorsement of 93 octane fuel whereas the Ford spec sheet simply says regular unleaded.
On my 2016 Ecoboost I have never been able to discern turbo lag. It certainly isn't as much as any diesel that I have driven and not over a few tenths of a second. The main problem I have is avoiding spinning the tires when starting off with a heavy trailer.
