the good old argument about oil change
1/29/14, 01:59 PM
#81
Yes, should be fine, but here lies the issue; why is Ford stating one oil for an engine that is refered to as a track pack, and another oil in an engine that is not? I'm aware that the Boss has some additional goodies to give it a 'go faster' capability. Is it because the Boss 5.0 has forged internals? Are these forged parts requiring this difference in oil viscosity? Forged internals have different tolorences "metal to metal?
I'm guessing the Boss does not factor into any CAFE statistics for fuel economy, so I'm rulling that out.
I'm guessing the Boss does not factor into any CAFE statistics for fuel economy, so I'm rulling that out.
1/29/14, 02:01 PM
#82
1/29/14, 02:39 PM
#85
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The Boss specifies 5w-50, the track pack 5.0 specifies 5w-50, and the GT 5.0 specifies 5w-20?
Do I have this right?
1/29/14, 03:02 PM
#86
Boss 5W 50
5.0. 5W 20
5.0 with trac pack. 5W 50
Now my understanding the Boss engine is the same 302 engine as the 5.0's with a bit more HP, torque and some forged parts but same tight spec engine
Last edited by 2011 Kona Blue; 1/29/14 at 03:03 PM.
1/29/14, 04:33 PM
#91
Bullitt Member
Track pack is same engine as regular GT aside from an oil cooler and Ford specs 5W50. It must have something to do with intended uses of the car.
1/29/14, 05:06 PM
#93
Cobra Member
Doing research on the internet in no different than doing research in a library. What's the difference in obtaining information? The library has books that people can touch that have printed material that states either facts or opinions about a topic and subject. The internet has the same or very similar documents as the library only in electronic format which are written materials that state facts and opinions. Now granted I'm not saying there isn't a lot of bull and garbage out on the web but there is also tons of good solid articles and posts that are informative and educational. So here's the million dollar question. Where does someone find good factual solid information that shows 5W20 oil is better or 5W30 oil is better too use? Here is the part that really confuses me so perhaps your wisdom can explain! Person A owns a 2014 5.0 and the oil cap reads 5W 20 oil. Person B owns 2014 5.0 with trac pack option yet Ford recommends 5W 50 weight. Ford engineers state that 5W 20 weight works better because it can lubricate areas of today's tight spec engines in areas better than a thicker oil say 5W 30. A base 5.0 and 5.0 with trac pack have the identical tight spec engine yet the one with the trac pack calls for 5W50. How can 5W 50 oil possibly properly lubricate two identical same engines when Ford calls for 5W 20 on the one engine. That doesn't make sense too me. So, if a 5.0 gets 5W 50 oil then why couldn't someone safely use 5W30 oil in a car that calls for 5W 20 oil and also uses 5W 50 oil? I'm lost on that?
1/29/14, 05:08 PM
#94
1/29/14, 05:09 PM
#95
Cobra Member
Yes, should be fine, but here lies the issue; why is Ford stating one oil for an engine that is refered to as a track pack, and another oil in an engine that is not? I'm aware that the Boss has some additional goodies to give it a 'go faster' capability. Is it because the Boss 5.0 has forged internals? Are these forged parts requiring this difference in oil viscosity? Forged internals have different tolorences "metal to metal? I'm guessing the Boss does not factor into any CAFE statistics for fuel economy, so I'm rulling that out.
The tp gt and regular gt have identical motors down to every part number (except for the radiator and oil cooler etc). Yet they call for different oils.
Last edited by typesredline; 1/29/14 at 05:42 PM.
1/29/14, 05:16 PM
#96
Cobra Member
I think he was referring to the tp gt which uses the same exact engine as the regular gt yet call for two different oil weights. The boss which is slightly different in components (but same spec) also calls for this heavier weight.
1/29/14, 05:28 PM
#98
Cobra Member
Exactly my point but why. Why does the manufacturer give two different oil weight recommendations for the same exact car and engine. Yet Ford claims 5W20 provides better lubrication and engine wear because of the tight engine specs and it gets down to parts where thicker oil can't get too. Then at the same breath recommend 5W 50 oil for that same car, same engine with upgraded suspension parts. That just goes too show that 5W 30 is not going too hurt anything according too Ford.
The tolerance thing is a PR cover for liability.
The real reason is that Ford has to have their regular line up if vehicles average a certain mpg based on volume sold. They sell a ton of gt's. The 5-20 in testing could have had no adverse affects in motor life yet extended mpg by one or two. That is important for their averages. The boss is limited run (and the tp is limited too) so having a heavier oil is not going to hurt averages. BUT they don't want people coming in with blown motors bc they were run hard on the track with a 20 weight oil. Then they'd have the argument of "why'd you sell me a 'track pack' but it's not meant to be tracked?" Law suit. So they put thicker oil in it.
It's up to is at that point to say what's more important. Mpgs or protection. If you granny drive it maybe you can run 20 weight and have both. I'd rather have protection since I didn't buy a v8 for mpgs anyway.
On a side note. Heaven forgive me for implying that Ford being a business to make money might have made a statement that wasn't completely true. I will sing 10 mustang sallys now.
1/29/14, 05:37 PM
#99
Cobra Member
What they are saying is that 20 is good for the diverse group that will buy a gt. 50 is for driving hard. I run 30 because I don't want to hesitate mashing it if I feel like I've done it too much recently and the 20 might not handle it. I'm more confident running 30.
1/29/14, 05:41 PM
#100
Cobra Member
This thread has allowed me to vocalize my reasoning and see other views. Plus having to think of witty ways to get back at the jerks on here. I see it clearer than ever now.