|
Do I have to use 5W20 oil??
Hey guys getting the car all prep'd for spring and wanted to know if I had to use 5W20 oil, I've done some reading and most places tell me its ok to substitute as its only used to keep fuel ratings low by the manufacturer. What oil are all of you using? Why? any problems? Any help would be great.
Thanks. |
I have always used what the manufacturer has suggested for peace of mind. Right now I use full syn 5w-50.
|
I go with the manufacturer spec's, which is 5w20. If you are a v6 then 5w30.
|
Yes!
The tollerances on those engines are very precise. Don't use anything other than spec. |
I know some guys use different grades and for anyone that does why????
|
Well,
Ford says to use a certain grade oil for a reason. I too use full synthetic 5w20 in my V6 Mustang and on my wife's Focus as 5w20 is what Ford says to use. Plus my Dodge will convert to full synth 5-20 as well on it's next oil change... |
ok ok, just wondering, I have a tone of 5w30 synthetic from my previous car and was wondering. I'll go out and get some new stuff. 6.2L is what it takes if my research is correct. Right??
|
You are fine to run 5W30 in the 4.6 3V engine. As you have heard, the original reason for going to 5W20, both Ford and Honda in 2001, was to increase fuel economy. I still have the bulletin at the dealership, they figured that they would get a 0.2% average increase in fuel economy across the board, which doesn't sound like much, but adds up when you're looking at millions of vehicles.
cheers Ed N. |
I always like to use what the manufacturer says to.
|
What Ed said is correct about the fuel economy. I was using 5w-30 on my car, but I'm stepping up to 10w-30 this season.
|
u should always go by manufacters spec i mean 5w30 wouldnt kill it but over time it could cause more wear then using the regular spec
|
Originally Posted by ChadStang
(Post 148579)
I always like to use what the manufacturer says to.
|
The internal engine parts didn't change from 2000 model year to 2001 model year when they started specifying 5W20 for improved fuel economy. I know this because I can look up the part numbers for rods, bearings, pistons, rings, etc. for any of the engine around that time that were carryover from 00 to 01.
So how is using 5W30 going to cause increased wear? If anything, it will offer better protection for an engine that is being run hard or at consistently high rpms in hot weather, compared to the average driver. On the 2012 Boss 302, they are specifying 5W50 synthetic as used in the 5.4 GT-500, compared to 5W20 for the regular 2011-12 5.0L GT. One of the members on the Corner-Carvers forum is a Ford engineer who helped with some of the design on the 4.6 4V in the Mach I and Aviator ... he specifically stated that he would NOT use 5W20 in a mod motor that is being run hard. :wink: cheers Ed N. |
^^^luckily that does not apply to me re: running hard lol
|
Originally Posted by fast Ed
(Post 148606)
The internal engine parts didn't change from 2000 model year to 2001 model year when they started specifying 5W20 for improved fuel economy. I know this because I can look up the part numbers for rods, bearings, pistons, rings, etc. for any of the engine around that time that were carryover from 00 to 01.
So how is using 5W30 going to cause increased wear? If anything, it will offer better protection for an engine that is being run hard or at consistently high rpms in hot weather, compared to the average driver. On the 2012 Boss 302, they are specifying 5W50 synthetic as used in the 5.4 GT-500, compared to 5W20 for the regular 2011-12 5.0L GT. One of the members on the Corner-Carvers forum is a Ford engineer who helped with some of the design on the 4.6 4V in the Mach I and Aviator ... he specifically stated that he would NOT use 5W20 in a mod motor that is being run hard. :wink: cheers Ed N. Honestly I dont even know what the steeler uses as thats where I get it done but I'd assume they'd use 5-20? |
Some good info for sure Ed,maybe i should make the swap to 5w30 since my GT see's some good rpm.
|
My friend's 07 GT that is a summer daily driver, and sees about 10 track days a year, gets Motorcraft 5W30 synthetic when he brings it in to our dealership for servicing. That is a good weight to go with IMO, still light enough for good protection and getting quick flow up to the heads on a cold start, but enough body for running hard on a hot day.
cheers Ed N. |
Cool,i think i will do the swap when i come to do the oil change on the GT before i start driving it for the season.
|
Fast Ed is absolutely right. Ford gets spanked with the introduction of the CAFE laws. 5w30 offers better protection and if you want to go one step better go with a 0w-30 so the oil will get moving at start up quicker. I still laugh at the "do what the manufacturer told ya" comments. Yet ford spec'd 5w-30 for the same cars in the same years in Australia where there are no cafe laws. 5w-20 shears quicker and offers less protection at higher revs. And we all know how these mod motors love to rev. Op forget what these nay-sayers are telling you. An xw-30 is better for your motor
|
| All times are GMT -5. The time now is 11:39 PM. |
© 2024 MH Sub I, LLC dba Internet Brands