Car & Driver Long Term Shelby GT350

Discussion in 'Shelby GT350 Mustang' started by 17RubyShelbyGT350, Mar 18, 2018.

  1. Spacebird

    Spacebird Well-Known Member

    Vehicle(s):
    2016 GT350R
    Joined:
    Nov 19, 2015
    Location:
    Boulder County, Colorado
    Posts:
    695
    Likes Received:
    520
    0   0   0
    There's no evidence that babying the car when new will reduce oil consumption. In fact, there are hypotheses that pass the engineering sniff test that say pushing the car hard and having the engine either under load or vacuum at all times is the way to break it in. Given load and vacuum is what pushes the rings to the cylinder walls, I tend to think this makes sense.

    My anecdote:

    For my first 1000 miles I made sure the car was either accelerating or decelerating as much as I could; highway driving was between 50 and 80 and back in gear, constantly. I did my first track day at ~1100 miles and my second at ~2200.

    In my last 2000 miles I've done 100+ minutes at COTA and the balance just tooling around. I'm about a quart low which I think is pretty darn good given these engines are meant to consume some oil.
     
    extrachrispy and Hack like this.
  2. extrachrispy

    extrachrispy Active Member

    First Name:
    Chris
    Vehicle(s):
    2018 GT350 Ruby Red w/black OTT, conv. pkg.
    Joined:
    Dec 19, 2016
    Location:
    Austin, Texas
    Posts:
    40
    Likes Received:
    9
    0   0   0
    Re: change intervals

    There was a thread on BobIsTheOilGuy regarding oil analysis, wear metals, and change intervals. One of the non-intuitive findings was that, to a point, extending the wear interval resulted in *reduced* wear metals over time (particularly iron, IIRC).
     
  3. rick81721

    rick81721 Well-Known Member

    First Name:
    Rick
    Vehicle(s):
    2017 GT350 LB H6153
    Joined:
    Feb 23, 2015
    Location:
    Venice, FL and Montgomery, NJ
    Posts:
    703
    Likes Received:
    354
    Occupation:
    Retired
    0   0   0
    My experience so far: first 2200 miles, hardly any oil consumption. Changed oil. Now at 4700 miles, just got back from 400 miles of highway driving and down 1/2 qt
     
  4. johnny1

    johnny1 Well-Known Member

    Vehicle(s):
    2019 GM truck (Had both new a 16 and 17 Shelby GT 350)
    Joined:
    Oct 30, 2016
    Location:
    Kansas
    Posts:
    561
    Likes Received:
    212
    0   0   0
    Could it be that it was at that level after the oil change or was it at the top hole after (full mark) Reason I ask is i just got my first oil and filter changed last week after a year at 2750 miles (my 17 has spin on oil filter) They put 10 quarts in and mine is half way between the holes which would show half quart low. Obviously for my engine that is full then.
     
  5. Nfs1000f

    Nfs1000f Well-Known Member

    First Name:
    Neal
    Vehicle(s):
    2017 GT350
    Joined:
    Jan 1, 2018
    Location:
    Upstate NY
    Posts:
    523
    Likes Received:
    377
    0   0   0
    Same for me.
     
  6. rick81721

    rick81721 Well-Known Member

    First Name:
    Rick
    Vehicle(s):
    2017 GT350 LB H6153
    Joined:
    Feb 23, 2015
    Location:
    Venice, FL and Montgomery, NJ
    Posts:
    703
    Likes Received:
    354
    Occupation:
    Retired
    0   0   0
    Mine was about halfway between holes after oil change. 2500 miles later, the lever just dropped below the bottom hole. Added 1/2 qt and back to halfway between
     
  7. Don's Stang

    Don's Stang Well-Known Member

    Vehicle(s):
    2017 GT350
    Joined:
    Jul 14, 2014
    Location:
    Boston, Ma
    Posts:
    123
    Likes Received:
    8
    0   0   0
    I have a case of Amsoil signature series 5W-50 from my last mustang, I plan to use that after I hit 1000 miles. I have read the motorcraft 5W-50 starts loosing its viscosity after only 1000 where the Amsoil or other better oils don't break down as quick

    Maybe this is part of the issue
     
  8. OP
    OP
    17RubyShelbyGT350

    17RubyShelbyGT350 First Ford - First Shelby

    Vehicle(s):
    2017 Shelby GT350-Conven Pkg - 1st Perf Mods Done
    Joined:
    Nov 15, 2017
    Location:
    Gainesville, FL
    Posts:
    135
    Likes Received:
    148
    0   0   0
    Actually, there is no evidence either way, that I have seen. But after doing this with all my cars, including the 9 toys before this one, I have NEVER had an oil consumption problem-even the cars I tracked had small additional over normal oil consumption.

    So, I stick with what works for me - which btw is not "babying" - just following break-in procedures for the first 1000 miles. And that includes steadily increasing the RPM and accels/decels as I indicated in my earlier post.

    YRMV - but for me, if it ain't broke, I am not gonna fix it.
     
Loading...

Share This Page