Switch from 5w-20 to 5w-30

[lexus114]

Originally Posted By: lexus114
Funny,I just made the switch to 5W-20 from 5w30. Lexus loves it!



Honestly, I would like to thank CATERHAM for giving me the courage and advice I needed to make the switch to 5W-20.

 

[KrisZ]

Originally Posted By: lexus114
Originally Posted By: lexus114
Funny,I just made the switch to 5W-20 from 5w30. Lexus loves it!



Honestly, I would like to thank CATERHAM for giving me the courage and advice I needed to make the switch to 5W-20.

This is all great and I know this thread is kinda slow moving but you don't have to talk to yourself

Do it like a pro and get two accounts

 

[lexus114]

Originally Posted By: KrisZ
Originally Posted By: lexus114
Originally Posted By: lexus114
Funny,I just made the switch to 5W-20 from 5w30. Lexus loves it!



Honestly, I would like to thank CATERHAM for giving me the courage and advice I needed to make the switch to 5W-20.

This is all great and I know this thread is kinda slow moving but you don't have to talk to yourself

Do it like a pro and get two accounts

yeah,....gotta go to k-mart....400 oak street....yeah.

 

[Zako2]

Originally Posted By: KrisZ

I was with you all the way until the last sentence. You do realize that most manufacturers do not recommend 0w oils right? Then how can you keep saying that manufacturers know their engines best, on one side of the argument, and then recommend an oil weight that is NOT recommended by a lot of manufacturers, on the other side of your argument?

You either stick blindly to what manufacturers recommend, or you accept that people will use whatever they think is right or suits their needs. In most cases either choice will not doom the engine or shorten its service life.


Good catch

I certainly belong to the camp that prefers that oils can flow as freely as possible on cold starts, but without compromising hot temperature viscosity.

What I really meant to say is that manufacturers are usually right on the "hot" viscosity oil rating for their engine (the number that follows after 0W or 5W). Most cars can switch from 20 to 30 grade oil with no problems. the people who prefer 5W30 over 5W20 most likely will not blow up their engine. The cold viscosity rating is a different animal. 0W, 5W, and 10W are all TOO thick when engine is cold, even during summers. Why don't more car manufacturer's recommend the 0W-X oils? Probably because these oils are still more "exotic" and come only in more expensive synthetic form.

 

[countryboy69]

As a tech we see some engines come into the shop with engine noise when the truck is warmed right up. mostly 5.4l and 4.6l fords with vct's and after 2008 seems worse. there isn't enough oil pressure to control the vct's at idle . engine starts knocking and running rough. tear engine apart a find cam cap scoring and some bottom end scuffing. i have been able to fix a couple with new oil pump and tensioners. no sludge or varnish in engine so it has had decent maintenance. ford has recommended to put 10w40 in it for temps down to - 36. these only act up after about 215 degrees oil temps. No valvetrain noise. 5w20 is recommended for these engines. i think the bearings are loosening up and pressure is bleeding off causeing lower oil pressure. i also think that if it wasn't a vct engine there would be no problems with these engines. vct's need alot of oil to be controlled. everything wears a bit and pressure goes down

Why 08 and up is beyond me but that is when they started pushing longer service intervals. i dont think 5w20 is up to hard working engines and extended intervals. that's probably why the ecoboost is getting a 5w30 recommendation from ford. higher oil temps, more stress.

it's made me think twice about 5w20 in my new 5.0l and extended oil changes.

 

[LeakySeals]

Originally Posted By: lexus114
Funny,I just made the switch to 5W-20 from 5w30. Lexus loves it!


Thats great ...but when you say loves it what do you mean? You just made the change so there's no UOA..so its a butt dino feeling?

 

[LeakySeals]

Originally Posted By: countryboy69
i think the bearings are loosening up and pressure is bleeding off causeing lower oil pressure.

Interesting. The other day I was reading a BITOG post titled Bearing Film Thickness from 2004. Was a real fear back then.

Originally Posted By: countryboy69
that's probably why the ecoboost is getting a 5w30 recommendation from ford. higher oil temps, more stress.

it's made me think twice about 5w20 in my new 5.0l and extended oil changes.

Is that a new engine design? Wonder what stats Ford has to make a decision to go back to thicker oil.

 

[countryboy69]

it is the 3.5l twin turbo

 

[Gene K]

Originally Posted By: LeakySeals
Originally Posted By: countryboy69
i think the bearings are loosening up and pressure is bleeding off causeing lower oil pressure.

Interesting. The other day I was reading a BITOG post titled Bearing Film Thickness from 2004. Was a real fear back then.

Originally Posted By: countryboy69
that's probably why the ecoboost is getting a 5w30 recommendation from ford. higher oil temps, more stress.

it's made me think twice about 5w20 in my new 5.0l and extended oil changes.

Is that a new engine design? Wonder what stats Ford has to make a decision to go back to thicker oil.


They went back to 5W30 because of the potential oil dilution (gasoline) from Direct Injection (Ecoboost) which the 5.0L does not have.

 

[Gene K]

As to the original poster most likely the Jiffy Lube used Pennzoil as they are owned by SOPUS.

 

[cb_13]

Originally Posted By: countryboy69
As a tech we see some engines come into the shop with engine noise when the truck is warmed right up. mostly 5.4l and 4.6l fords with vct's and after 2008 seems worse. there isn't enough oil pressure to control the vct's at idle . engine starts knocking and running rough. tear engine apart a find cam cap scoring and some bottom end scuffing. i have been able to fix a couple with new oil pump and tensioners. no sludge or varnish in engine so it has had decent maintenance. ford has recommended to put 10w40 in it for temps down to - 36. these only act up after about 215 degrees oil temps. No valvetrain noise. 5w20 is recommended for these engines. i think the bearings are loosening up and pressure is bleeding off causeing lower oil pressure. i also think that if it wasn't a vct engine there would be no problems with these engines. vct's need alot of oil to be controlled. everything wears a bit and pressure goes down

Why 08 and up is beyond me but that is when they started pushing longer service intervals. i dont think 5w20 is up to hard working engines and extended intervals. that's probably why the ecoboost is getting a 5w30 recommendation from ford. higher oil temps, more stress.

it's made me think twice about 5w20 in my new 5.0l and extended oil changes.

That ssm was repealed about 2 months after it was released. It was only for a tick when giving light throttle at idle. Ford does not recommend for everyone to go put 10w40 in their vehicles. Funny how things like that take on a life of their own on the internet.

 

[countryboy69]

i wasn't recommending 10w40 for everyone but they did put out the letter. I was just saying there are other options that can be explored depending on usage of the vehicle and temps that it may be seeing.

 

[Garak]

Originally Posted By: KrisZ
You do realize that most manufacturers do not recommend 0w oils right? Then how can you keep saying that manufacturers know their engines best, on one side of the argument, and then recommend an oil weight that is NOT recommended by a lot of manufacturers, on the other side of your argument?


There's one problem with 0w-XX oils in normal, API/ILSAC speced engines. They tend to be synthetics, and priced as such. If you look at Petro-Canada's 0w-30, it meets SN/GF-5, along with Chrysler's own specification, to pick on one manufacturer's example. Let's assume that specification means it's allowed (if it didn't, it would be a rather meaningless specification, but that's another discussion).

Why would the average, relatively uninformed oil consumer wish to pay $7 a litre for PC 0w30 with the Chrysler spec when they could get 5w-20 or 5w30 with the same specification for half the price? I, too, wish the manufacturers were able to give a little more leeway with oil choices, particularly with choosing something in a 0w-XX specification.

If they mandate a 0w-XX, people get annoyed at the price (or OCIs have to be uniformly extended under the OLM). If they simply allow 0w-XX, people complain that the 0w-XX is too expensive, and few use it anyhow. In any case, ExxonMobil backs their 0w-XX products for warranty where 5w-XX is specified.

 

[lexus114]

Originally Posted By: LeakySeals
Originally Posted By: lexus114
Funny,I just made the switch to 5W-20 from 5w30. Lexus loves it!


Thats great ...but when you say loves it what do you mean? You just made the change so there's no UOA..so its a butt dino feeling?



Like I mentioned in my other posts. Much peppier, and when we went out to western PA, it didnt even have to downshift to pull the hill`s on Rt.76. It always had to down shift in the past using 5w30 Synthetic.