the good old argument about oil change
1/31/14 | 09:19 AM
#141
Cobra Member
Joined: February 11, 2013
Posts: 1,203
Likes: 21
From: Florida
5-30 is only 20% thicker in viscosity vs 5-20 at operating temps. Ford clearly prefers 5-30 but stood to save significant money by switching to 5-20. The tp and boss run 5-50 for extreme wear protection.
1/31/14 | 09:33 AM
#142
Shelby GT500 Member
Joined: November 26, 2011
Posts: 2,633
Likes: 4
But no way all these guys who own Boss mustangs and GT trac pack mustangs are tracking there cars yet still using 5W 50. Lol. What it does show that clearly 5W50 does lubricate the tight specs of our engines so no need for 5W 20. If someone runs there mustang hard at times on the street like me 5W 30 is the perfect blend!
1/31/14 | 01:44 PM
#144
Legacy TMS Member
Joined: September 6, 2011
Posts: 1,892
Likes: 56
From: Kansas City, MO
Not the case. Honda for one has always used 5 or even 10-30. Always. And still does. Does that correlate to their forever lasting motors?? Idk. I'm sure others that have moved to 5-20 have done so for similar reasons. It's not like cafe is new. I'm also not sure why after the skeptics have been calling for a ford engineer to speak to this, when we get TWO, it's shrugged off as one out of a thousand.... The bottom line is, (per ford engineers) we really shouldn’t be running 5w20. The switch from 5w30 in 1999 to 5w20 in 2001 (on identical engines) had nothing to do with wear or reliability issues and everything to do with Ford saving a few bucks by meeting CAFE standards. At the time Ford was fined $5.50 for every 1/10th of a MPG under the target average of 27.5 MPG for every vehicle manufactured. To help meet the target Ford changed from 5w30 to 5w20 and was able to improve mileage by 1/16th of a MPG and meet their goals. While most people understand the main function of oil is to protect the engine, Ford's primary concern in that respect is that the engine survives the warranty period. Do they last longer? Sure ford makes a great motor. But to the guy that got all butt hurt over me suggesting that ford doesn't care what happens out of warranty especially when they make money from it, I hope you realize that ford is in business to make money. Not fulfill your fantasies.
http://mobile.vehicleservicepros.com...ic-oil-changes
And yes, Ford is in the business of making money - you do that by not having motors fail just out of warranty.
1/31/14 | 02:22 PM
#147
Shelby GT500 Member
Joined: November 26, 2011
Posts: 2,633
Likes: 4
1/31/14 | 02:24 PM
#148
GT Member
Joined: April 11, 2013
Posts: 110
Likes: 0
From: Michigan
Changing the oil at 5,000 is the best choice, and no more than 5000 thereafter. But you really need to run 5W-20 oil if that is what is on the cap, you will find that many people say it dont matter, and they are 100% incorrect. These are not push rod engines, the timing components MUST have the correct oil used. Timing can be changed with the incorrect wait of oil. People are going to say I am crazy, but trust me with over 40 years of ford experience. Hope this helps.
1/31/14 | 02:31 PM
#149
GT Member
Joined: April 11, 2013
Posts: 110
Likes: 0
From: Michigan
7500 miles is waiting to long, because know one takes in account for all the eliding we do and low RPM Traffic jams. In the end that would be more like 12000 Miles.
1/31/14 | 02:46 PM
#150
Legacy TMS Member
Joined: September 6, 2011
Posts: 1,892
Likes: 56
From: Kansas City, MO
1/31/14 | 04:11 PM
#151
Shelby GT500 Member
Joined: November 26, 2011
Posts: 2,633
Likes: 4
Changing the oil at 5,000 is the best choice, and no more than 5000 thereafter. But you really need to run 5W-20 oil if that is what is on the cap, you will find that many people say it dont matter, and they are 100% incorrect. These are not push rod engines, the timing components MUST have the correct oil used. Timing can be changed with the incorrect wait of oil. People are going to say I am crazy, but trust me with over 40 years of ford experience. Hope this helps.
Last edited by 2011 Kona Blue; 1/31/14 at 04:13 PM.
1/31/14 | 04:18 PM
#153
Shelby GT500 Member
Joined: November 26, 2011
Posts: 2,633
Likes: 4
7,500 miles too long for someone using a synthetic oil? No way bro. Ford recommends 10,000 oil change intervals and that's using there 50/50 blend. That doesn't take into a count with a synthetic base III oil or a true base IV synthetic. By all means change your oil as frequent as you like but 7500 miles is not too long with the correct oil.
1/31/14 | 05:33 PM
#157
I Have No Life
Joined: September 24, 2011
Posts: 10,141
Likes: 172
Lol... I already called it back when this was on page 1, 4 posts in. As others have stated, all this info is same regurgitated info that's been discussed over and over again. Any oil thread posted by someone with less than 100 posts should be closed by the mods and links given to existing oil threads.
Last edited by FromZto5; 1/31/14 at 06:29 PM.
1/31/14 | 05:53 PM
#158
Post *****
Joined: October 9, 2007
Posts: 32,752
Likes: 159
Lol... I already called it back when this page 1, 4 posts in. As others have stated, all this info is same regurgitated info that's been discussed over and over again. Any oil thread posted by someone with less than 100 posts should be closed by the mods and links given to existing oil threads.
1/31/14 | 06:42 PM
#160
Shelby GT500 Member
Joined: November 26, 2011
Posts: 2,633
Likes: 4
