SNKBITE Posted September 4, 2013 Report Share Posted September 4, 2013 Ford spec is for 5W-20 full synthetic. However, I have a bunch of 5W-50 laying around for my GT500. Any issues with using the 5W-50 in the 5.0 liter? Thanks. Quote Link to comment Share on other sites More sharing options...
NJPat Posted September 4, 2013 Report Share Posted September 4, 2013 for what it's worth I'm using Amsoil Racing, 10W-30 Quote Link to comment Share on other sites More sharing options...
SNKBITE Posted September 6, 2013 Author Report Share Posted September 6, 2013 With not enough info to draw a good conclusion, and finding my oil pressure as high as 90 psi with 5W-50, I am changing again back to 5W-20. Just an FYI. Quote Link to comment Share on other sites More sharing options...
shelbymotorsports Posted September 6, 2013 Report Share Posted September 6, 2013 Ford spec is for 5W-20 full synthetic. However, I have a bunch of 5W-50 laying around for my GT500. Any issues with using the 5W-50 in the 5.0 liter? Thanks. For warranty compliance I would stick with the Ford recommended weight. Keep in mind that all manufactures now take an oil sample if there is any warranty work needed on the long block. They will have the oil sample analyzed for the correct type & weight along with the how long the oil has been in the crankcase. Steve Quote Link to comment Share on other sites More sharing options...
SNKBITE Posted September 6, 2013 Author Report Share Posted September 6, 2013 For warranty compliance I would stick with the Ford recommended weight. Keep in mind that all manufactures now take an oil sample if there is any warranty work needed on the long block. They will have the oil sample analyzed for the correct type & weight along with the how long the oil has been in the crankcase. Steve Thanks, Steve..... My feelings as well.. Quote Link to comment Share on other sites More sharing options...
NJPat Posted September 6, 2013 Report Share Posted September 6, 2013 last I checked my engine warranty expired when i checked off the 624 HP box on the Shelby Order Sheet. i'm more concerned with oil sheer on a high horsepower supercharged engine just my 2cents Quote Link to comment Share on other sites More sharing options...
SNKBITE Posted September 6, 2013 Author Report Share Posted September 6, 2013 The Ford technician offered up 5W-30 as an option because of the Supercharger, but I was brought back to the 5W-20 as I am still under warranty with the 525hp version. Appreciate all the input, however. Quote Link to comment Share on other sites More sharing options...
lbj Posted October 21, 2013 Report Share Posted October 21, 2013 (edited) I just switched to the Motorcraft Synthetic Blend 5W30. If the GT Track Pack with the same Coyote I have is spec'd for 5W50, I should be able to get away with 5W30. I do, however, have a heated garage and the car is not left out in the cold. The engine is so much quieter now. Time will tell if I have messed up or not. I have never been happy with the oil consumption numbers with my Mustang, 1500 miles/qt. It will be interesting to see what happens with 5W30. Edited October 21, 2013 by lbj Quote Link to comment Share on other sites More sharing options...
NJPat Posted October 21, 2013 Report Share Posted October 21, 2013 i don't use any oil - maybe i'm just lucky Quote Link to comment Share on other sites More sharing options...
lbj Posted January 3, 2014 Report Share Posted January 3, 2014 (edited) I just switched to the Motorcraft Synthetic Blend 5W30. If the GT Track Pack with the same Coyote I have is spec'd for 5W50, I should be able to get away with 5W30. I do, however, have a heated garage and the car is not left out in the cold. The engine is so much quieter now. Time will tell if I have messed up or not. I have never been happy with the oil consumption numbers with my Mustang, 1500 miles/qt. It will be interesting to see what happens with 5W30. 818 miles on my recent oil change to 5W30. I checked it and added a quarter quart and it brought it back to the full mark. Hmmm, 1500 miles a quart with 5W20 and extrapolated distance of 3,272 miles a quart with 5W30. Edited January 4, 2014 by lbj Quote Link to comment Share on other sites More sharing options...
NJPat Posted January 3, 2014 Report Share Posted January 3, 2014 lbj - what brand of oil are you using? Quote Link to comment Share on other sites More sharing options...
lbj Posted January 3, 2014 Report Share Posted January 3, 2014 Motorcraft Synthetic Blend 5W30. Quote Link to comment Share on other sites More sharing options...
Torch40 Posted January 4, 2014 Report Share Posted January 4, 2014 last I checked my engine warranty expired when i checked off the 624 HP box on the Shelby Order Sheet. i'm more concerned with oil sheer on a high horsepower supercharged engine just my 2cents Oil shear! Have not heard that one for a while. Some of the best and most entertaining reading was the unleashed beast massive oil thread. I kind of miss that... Quote Link to comment Share on other sites More sharing options...
NJPat Posted January 4, 2014 Report Share Posted January 4, 2014 Those were some very informative threads . . . . Quote Link to comment Share on other sites More sharing options...
Don Johnston Posted January 5, 2014 Report Share Posted January 5, 2014 I have been going with the Motorcraft full synthetic 5W-20 on the 624HP. No loss of oil. I use the 5w-30 blend on all my other late model Ford toys as specified. Quote Link to comment Share on other sites More sharing options...
MJN Posted January 5, 2014 Report Share Posted January 5, 2014 818 miles on my recent oil change to 5W30. I checked it and added a quarter quart and it brought it back to the full mark. Hmmm, 1500 miles a quart with 5W20 and extrapolated distance of 3,272 miles a quart with 5W30. I would be curious if you were to switch to a different oil brand like AMSOIL with low Noak numbers if you would use less or even no more oil. Quote Link to comment Share on other sites More sharing options...
lbj Posted January 5, 2014 Report Share Posted January 5, 2014 (edited) I had to look up what NOAK meant. I am going to wait a while before going back to full synthetic. At 1000 miles on the car, I switched over to 5W20 synthetic and that's when I began to notice oil consumption. I wonder of this delayed the engine breaking in. If I babied the car, I would get 1500 miles a quart. If I drove hard, it would go as low as 1100 miles a quart on full synthetic Motorcraft 5W20. I decided to go back to the blend in case I delayed the break in period. Then I drove the last 818 miles hard, and as we can see, I doubled the oil mileage with synthetic blend using 5W30. On a side note, Ford apparently went away from oil squirters for the Coyotes in early December 2011, or so I have read. My build date is late January 2012, so I am figuring I have the coated pistons with the changed drainage holes and different rings. If true, I wonder if these new coated pistons with different rings take longer to break in? I can say that my engine sounds so much better using 5W30. The 5W20 made the engine sound "thrashy", if that makes any sense. Edited January 5, 2014 by lbj Quote Link to comment Share on other sites More sharing options...
Torch40 Posted January 5, 2014 Report Share Posted January 5, 2014 I have been going with the Motorcraft full synthetic 5W-20 on the 624HP. No loss of oil. I use the 5w-30 blend on all my other late model Ford toys as specified. You mean you are using the manufacturer’s recommended oil for that motor? Those Ford engineers don’t know what they are doing, you need to switch to Amway Oil in any other weight than what is recommended. Quote Link to comment Share on other sites More sharing options...
Don Johnston Posted January 5, 2014 Report Share Posted January 5, 2014 I usually will use Royal Purple, but have no problems with full synthetic Motorcraft for the amount and type of driving that I do, which is mostly lower speed cruising. Quote Link to comment Share on other sites More sharing options...
MJN Posted January 5, 2014 Report Share Posted January 5, 2014 (edited) You mean you are using the manufacturer’s recommended oil for that motor? Those Ford engineers don’t know what they are doing, you need to switch to Amway Oil in any other weight than what is recommended. Then why you run a Griggs suspension on your Ford that a different set of engineers spent hours on the track and off developing Could not help it sorry lol. It comes down to we all setup and believe in different things when we modify are cars, whether power, suspension etc we all love it and share Edited January 5, 2014 by MJN Quote Link to comment Share on other sites More sharing options...
Torch40 Posted January 6, 2014 Report Share Posted January 6, 2014 Then why you run a Griggs suspension on your Ford that a different set of engineers spent hours on the track and off developing Could not help it sorry lol. It comes down to we all setup and believe in different things when we modify are cars, whether power, suspension etc we all love it and share Good point, haha. Quote Link to comment Share on other sites More sharing options...
lbj Posted September 12, 2014 Report Share Posted September 12, 2014 (edited) I had to look up what NOAK meant. I am going to wait a while before going back to full synthetic. At 1000 miles on the car, I switched over to 5W20 synthetic and that's when I began to notice oil consumption. I wonder of this delayed the engine breaking in. If I babied the car, I would get 1500 miles a quart. If I drove hard, it would go as low as 1100 miles a quart on full synthetic Motorcraft 5W20. I decided to go back to the blend in case I delayed the break in period. Then I drove the last 818 miles hard and I doubled the oil mileage with synthetic blend using 5W30. On a side note, Ford apparently went away from oil squirters for the Coyotes in early December 2011, or so I have read. My build date is late January 2012, so I am figuring I have the coated pistons with the changed drainage holes and different rings. If true, I wonder if these new coated pistons with different rings take longer to break in? I can say that my engine sounds so much better using 5W30. The 5W20 made the engine sound "thrashy", if that makes any sense. First the bad part: When I swithched to 5W30 synthetic blend, although I used less oil, it was not stellar. I was overly optimistic thinking by extrapolation that I was perhaps getting 3K per quart. Turns out I was getting just shy of 2K per quart. Now for the good part: My Mustang finally broke in and stopped burning oil, at least not burning it in the copious amounts it had been. I put in a full sythnetic 5W30 at 10,500 miles a few weeks ago, and now, at 11,500 miles, there is hardly any oil usage showing on the stick, something less that a quarter of a quart. That's a first for this car. I had been so used to seeing the oil disappearing on the stick at a 1,000 miles. The break in sure took a long time. Edited September 12, 2014 by lbj Quote Link to comment Share on other sites More sharing options...
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