I have created an Excel spreadsheet to compare/contrast every Shelby 5.4L UOA I have ever collected, and I need more samples to show trends.
Base green color samples are random UOAs waiting for a follow up.
Other "like" color groupings are samples taken from the same engine.
Some of you will notice your UOA is included, as I have snatched a few UOAs from SVT Performance forums. If you have a UOA on your 5.4L Shelby engine that isn't on the list, please post it here for all to see, and I will update this picture with your information.
The poll is to get an idea what everyone is using in their Shelby for engine lubrication. If you chose the "other" option.....please post what you are using in your engine. If anyone needs to know where to get oil testing, visit one of the website links below. Please, if you have your oil tested with Blackstone....opt for the extra $10.00 to have TBN tested. OAI provides TBN testing included with the price. OAI also tests for oxidation (Blackstone does not). Both labs will yield very close consistent results.
Blackstone - will cost $25.00 for basic test, $35.00 with TBN, plus the cost of shipping ($1.90 USPS)
OAI testing kits UPS prepaid - will cost $32.20 - Amsoil preferred customers get this test for $25.95
Here is the current recommendation list for the 2007-2012 GT500 (as of February 2016)
Factory Fill is 6.5 quarts (stock oil pan) and 8 quarts with an aftermarket oil pan.
Amsoil AZF 0W-40 – Use this no matter what thermostat is in your engine and the car is used for street /drag use only.
Amsoil AMR 5W-50 – Use this if you HPDE or closed course race your GT500. Also use this lubricant if you are afraid to use anything other than what Ford recommends.
Amsoil EaO11 oil filter - 98.7% efficiency @ 20 microns, yet still flow better than a Motorcraft FL-820 (only 93.7% efficiency @ 20 microns).
Make your T6060 transmission shift like butter.
Amsoil Synthetic ATF - 3.6 quart fill (buy a gallon and use the left over fluid in your power steering pump)
Bottle Hand Pump - fits quarts and gallons (makes refilling the transmission and rear differential very easy)
For your rear differential
Amsoil 75W-140 - 2.5 quart fill – buy 3 quarts to make sure you have enough.
Friction modifier is required in the factory differential. Use all 4 ounces
Amsoil Slip Lock - 1 bottle required
and never pay retail price for it. Get it at dealer cost by adding this to your cart before you check out (save 25-30% on everything). Use the one year option.
Preferred Customer
Funny you mention that because I came in this thread to start looking for that. I've only used Rotella T6 5w40 in my Shelby and previous cars. My Dad has been using it in his cars for many years as well and gets it tested every couple of years. He's got about 80k miles on the V10 in his E350 and the tests always come back with very positive results using that oil.
Would like to hear UB rec here too as I'm close.
