08jester Posted February 13, 2010 Report Share Posted February 13, 2010 I have the 725pkge with 3000miles. Will be getting the car into the shop for an oil change soon. The oil was changed in March of 09 at Quantum when I had the SS package done. They put in a synthetic 5w-50. The shop that I am taking the car to is a very high class shop, they work on a lot of upper end sports cars. He is very familiar with the SS and has had a few there. They are recommending to change to 5w-20. Was hoping to get a little feed back on this since I really know nothing about oil weight. Thanks for any input. Aggie Link to comment Share on other sites More sharing options...
woody81 Posted February 13, 2010 Report Share Posted February 13, 2010 I am going to use exactly what Ford recommends for my Super Snake. Kenne Bell usually has good input on different issues. Maybe give them a call or start a post on their forum. Air temperature makes a difference on which oil to use. 5W-50 should be a good oil for most all temps. Link to comment Share on other sites More sharing options...
Nitro Posted February 13, 2010 Report Share Posted February 13, 2010 5W-50 will be better during the hot summer months, will maintain it's viscosity better. I see you live in Livermore where it can get fairly warm in the summer, so this would probably be a good choice. It appears it is also what Shelby prefers to use with this package. Link to comment Share on other sites More sharing options...
92fxdc Posted February 13, 2010 Report Share Posted February 13, 2010 I have the 725pkge with 3000miles. Will be getting the car into the shop for an oil change soon. The oil was changed in March of 09 at Quantum when I had the SS package done. They put in a synthetic 5w-50. The shop that I am taking the car to is a very high class shop, they work on a lot of upper end sports cars. He is very familiar with the SS and has had a few there. They are recommending to change to 5w-20. Was hoping to get a little feed back on this since I really know nothing about oil weight. Thanks for any input. Aggie DO NOT GOTO 5w-20!! Kenny at Quantum knows what he is doing - It doesn't sound like your shop knows the 5.4Lengine! I have over 10,000 miles on my GT500 w 650 HP I have run it hard at the Mid America Ford and Team Shelby Nationals in Tulsa using 5W-50 Full Synthetic with no problems. My Son has an 08 GT500 with a 2.9 whipple and is putting out over 725 and no problems with the 5w-50 full synthetic. MANY DEALERS DO NOT STOCK THE 5w-50 - maybe that is why - do you think? 92fxdc Link to comment Share on other sites More sharing options...
6-Speed Posted February 13, 2010 Report Share Posted February 13, 2010 Stick with 5W50 and find a different shop. Link to comment Share on other sites More sharing options...
ingram4868 Posted February 13, 2010 Report Share Posted February 13, 2010 Lots of people have various opinions on oil based on prior usage. How many of us have previously owned a 500HP supercharged car? I think I'll stick with what the engineers at Ford have spec'd Link to comment Share on other sites More sharing options...
1badshelby Posted February 13, 2010 Report Share Posted February 13, 2010 I sell Amsoil synthetic oil and use either Motorcraft 5w-50 or Castrol 5w-50 because Amsoil does not make a 5w-50... long story short, use what Ford says use! Link to comment Share on other sites More sharing options...
08jester Posted February 13, 2010 Author Report Share Posted February 13, 2010 My instinct was telling me to stick with the 5w-50, just wanted to get some other opinions. I was going with the Castrol full synthetic 5w-50. I sent Kenny & Glenn an e-mail asking for their input as well. Thanks everyone for the responses. Aggie Link to comment Share on other sites More sharing options...
ceswert Posted February 14, 2010 Report Share Posted February 14, 2010 I take my SS to a Ford dealership for all maintenance work. They use what is recommended. I know it's synthetic but I'm not sure of the weight. I have almost 14m on the car and it runs like a swiss watch. Link to comment Share on other sites More sharing options...
ingram4868 Posted February 14, 2010 Report Share Posted February 14, 2010 I take my SS to a Ford dealership for all maintenance work. They use what is recommended. I know it's synthetic but I'm not sure of the weight. I have almost 14m on the car and it runs like a swiss watch. Do I read that as 14 miles on the car? You must trailer it to and from the dealer for maintenance Link to comment Share on other sites More sharing options...
dbackg Posted February 14, 2010 Report Share Posted February 14, 2010 5w-20 ???????? add 200+ HP and use lighter weight oil. Yes, please try this and let us know how this works out. Link to comment Share on other sites More sharing options...
supercompdad Posted February 14, 2010 Report Share Posted February 14, 2010 5w-20 ???????? add 200+ HP and use lighter weight oil. Yes, please try this and let us know how this works out. Yeah we are sticking with the 5W-50 in ours. We run a pair of SuperComp dragsters making 1000+ horsepower and run 20W-50 in them. Link to comment Share on other sites More sharing options...
08jester Posted February 17, 2010 Author Report Share Posted February 17, 2010 5w-20 ???????? add 200+ HP and use lighter weight oil. Yes, please try this and let us know how this works out. Well, first of all, I was ONLY looking for constructive opinions. Secondly, my above post is pretty clear that I will be using the 5w-50 as recommended by Ford & Shelby. Come to find out, the mechanic thought I had a GT, men just don't listen........ Link to comment Share on other sites More sharing options...
knownukes Posted February 19, 2010 Report Share Posted February 19, 2010 5w-20 ???????? add 200+ HP and use lighter weight oil. Yes, please try this and let us know how this works out. Hmm. It sounds alot like adding 200+ HP and going w/a smaller rear tire!! Ya think? Link to comment Share on other sites More sharing options...
08jester Posted February 19, 2010 Author Report Share Posted February 19, 2010 Hmm. It sounds alot like adding 200+ HP and going w/a smaller rear tire!! Ya think? Well....... I'd have to agree with that........ Link to comment Share on other sites More sharing options...
dbackg Posted February 21, 2010 Report Share Posted February 21, 2010 Well, first of all, I was ONLY looking for constructive opinions. Secondly, my above post is pretty clear that I will be using the 5w-50 as recommended by Ford & Shelby. Come to find out, the mechanic thought I had a GT, men just don't listen........ Did you mean FORD GT or Mustang GT?? My 06 Ford GT calls for 5w-50. Link to comment Share on other sites More sharing options...
08jester Posted February 23, 2010 Author Report Share Posted February 23, 2010 Did you mean FORD GT or Mustang GT?? My 06 Ford GT calls for 5w-50. Mustang GT. Link to comment Share on other sites More sharing options...
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