Recent Topics
House electrical panel buzzing
by Mr Nice
46 minutes 18 seconds ago
Happy Birthday Merkava_4
by Trav
Today at 04:56 PM
When should you use grease with moly?
by Jetstreamz06
Today at 04:54 PM
VOA Motul 4100 Power 15W50
by GermanAutohaus
Today at 04:31 PM
Ace Hardware Pennzoil Yellow May 4th to 9th $2.99
by BigD1
Today at 04:23 PM
How often to get tires balanced?
by 2010Civic
Today at 03:17 PM
Manual says every 10 K on oil changes
by ceast
Today at 02:42 PM
Brake fluid ageing?
by LucasDK
Today at 02:39 PM
If Anybody has 60K Lying around
by GumbyJarvis
Today at 02:03 PM
144$ lot of 48 Fl-400s/L20195 Eq Filters
by GumbyJarvis
Today at 01:29 PM
AT Whine
by DWC28
Today at 01:14 PM
GM AutoTrak II fluid
by nthach
Today at 12:49 PM
Newest Members
myfarmertan, coachvonyo, ionix, Amtecol, DRAX392
57779 Registered Users
Who's Online
102 registered (Al, 06AllAmerican, 01rangerxl, 2015_PSD, 19jacobob93, 97prizm, 11 invisible), 1893 Guests and 290 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
57779 Members
66 Forums
248419 Topics
4062433 Posts

Max Online: 2862 @ 07/07/14 03:10 PM
Donate to BITOG
Page 1 of 8 1 2 3 4 5 6 7 8 >
Topic Options
#2500646 - 01/20/12 08:03 PM Can I use 5W30 instead of 5W20?
k1rod Offline


Registered: 12/17/06
Posts: 285
Loc: Arizona
I bought a 2012 Ford Fiesta for my daughter and I was surprised to see that the car calls for 5W20 motor oil. Unfortunately (or fortunately depending on how you look at it), I have several cases of QS 5W30. I guess what I don't know is if there is a real technical reason for using 5W20 or if it was just called out to meet some drubbed up CAFE standard? I know somebody's probably going to jump in here an stearnly warn me about invalidating my warranty but I really don't believe Ford would ever be able to tell the difference. Heck, my oil analysis company can't definitively tell the difference. And conventional 5W30 rapidly shears down to a 5W20 anyway. So... What it the BITOG verdict?

Top
#2500649 - 01/20/12 08:04 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
civic09 Offline


Registered: 12/02/11
Posts: 401
Loc: PA
Yes, and I say this cause' at my work we only use 5W30 oil in ALL of our fleet. Cadillacs and others also that are luxury get the 5w30 too.


a.v.
_________________________
03' Civic PYB 5W20 127,500 on vehicle

Top
#2500657 - 01/20/12 08:09 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
beast3300 Offline


Registered: 12/24/09
Posts: 3121
Loc: Ohio
You can use 5w30 however that may void your warranty. You may want to use 5w20 while under warranty.
_________________________
'03 Regal GS L67 3.29 GR:, PUP 5w30/TG3980, Filtermag

'99 Grand Prix L36: QS Defy 5w30/TG3387A, Filtermag


Top
#2500658 - 01/20/12 08:10 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
rjacket Offline


Registered: 05/15/10
Posts: 1107
Loc: CA
I have to say that I liked the feel of the MC Syn Blend 5w20 in my Ford but when the Valvoline Synpower rebate of a $1 a quart came up, I could only find 5w30 so that is what I'm using for a while now.

I'm going to be putting QS UD 5w30 in next also as it's what's in my stash. Be interested to see if there's a difference.

Top
#2500664 - 01/20/12 08:13 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
Clevy Offline


Registered: 11/11/10
Posts: 9782
Loc: Saskatoon canada
Go ahead. Ford spec'd 5w-20 when the CAFE laws went thru. I will never put 5w-20 in my mustang. Never
_________________________
2006 Charger RT
Miles x 2 per oil filter

Top
#2500666 - 01/20/12 08:15 PM Re: Can I use 5W30 instead of 5W20? [Re: civic09]
Clevy Offline


Registered: 11/11/10
Posts: 9782
Loc: Saskatoon canada
Originally Posted By: civic09
Yes, and I say this cause' at my work we only use 5W30 oil in ALL of our fleet. Cadillacs and others also that are luxury get the 5w30 too.


a.v.

This member works for a national car rental agency. I wonder if they know something and service their fleet accordingly.
_________________________
2006 Charger RT
Miles x 2 per oil filter

Top
#2500676 - 01/20/12 08:21 PM Re: Can I use 5W30 instead of 5W20? [Re: Clevy]
rjacket Offline


Registered: 05/15/10
Posts: 1107
Loc: CA
Originally Posted By: Clevy
Originally Posted By: civic09
Yes, and I say this cause' at my work we only use 5W30 oil in ALL of our fleet. Cadillacs and others also that are luxury get the 5w30 too.


a.v.

This member works for a national car rental agency. I wonder if they know something and service their fleet accordingly.


Doubt it. Plenty of folks have used 5w-20 for hundreds of thousands of miles and the same with 5w-30.

In a fleet, you might actually realize some fuel economy gains worth something, so the effort of using more than one weight might be worth it.

Top
#2500680 - 01/20/12 08:23 PM Re: Can I use 5W30 instead of 5W20? [Re: civic09]
johnachak Offline


Registered: 12/08/10
Posts: 1612
Loc: L.I. NY USA
Originally Posted By: civic09
Yes, and I say this cause' at my work we only use 5W30 oil in ALL of our fleet. Cadillacs and others also that are luxury get the 5w30 too.


a.v.

Most GM and especially Cadillacs call for 5w 30.
_________________________
06 Ford Freestyle, PP syn 5w20 MC filter
09 CTS 3.6 D.I. AWD, M1 5w30 Delco filter
Daughters Jeep Compass 2011, 2.4 AWD, 4WD switchable on the fly.
JMH

Top
#2500685 - 01/20/12 08:25 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
civic09 Offline


Registered: 12/02/11
Posts: 401
Loc: PA
I doubt NOTHING AT ALL. MY boss spoke to all of the makes that my company rents. They told us to use A 5W30 for their service interval on oil changes, and all of these intervals are 5,000 oci's. I DO NOT buy the 5w20 stuff at all after talking to a few members here that are VERY knowledgeable. I dont buy CAFE stuff either. Go ahead and use the 5w20 or 10 whatever. We dont gain much either FOLKS, we use what they the manf. tell us that they want us to use. It is worth the effort yes and my company has NEVER had a oil related FAILURE AT ALL using 5w30.
_________________________
03' Civic PYB 5W20 127,500 on vehicle

Top
#2500688 - 01/20/12 08:27 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
civic09 Offline


Registered: 12/02/11
Posts: 401
Loc: PA
Thanks Johnachak for that clarification and reasoning.
_________________________
03' Civic PYB 5W20 127,500 on vehicle

Top
#2500693 - 01/20/12 08:30 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
pushrod Offline


Registered: 08/17/05
Posts: 56
Loc: Maryland
I think that I would use the 5w-30 in warm/hot seasons
However my 2004 ford says 5w-20 on the fill cap and has always had 5w-30 since the first change. If that car is direct injection maybe the 5w-30 will help with fuel dilution?

Top
#2500694 - 01/20/12 08:31 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
johnachak Offline


Registered: 12/08/10
Posts: 1612
Loc: L.I. NY USA
When I traded in my Mustang (10 w 30 and fl800s) for the Caddy, autozone swapped my still sealed oil and filters for the new 5w30 (for Caddy) and 820s filters (for my Ford) no problem. I am. A regular therre though. Swapped a case of oil and 3 filters.
_________________________
06 Ford Freestyle, PP syn 5w20 MC filter
09 CTS 3.6 D.I. AWD, M1 5w30 Delco filter
Daughters Jeep Compass 2011, 2.4 AWD, 4WD switchable on the fly.
JMH

Top
#2500700 - 01/20/12 08:34 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
tig1 Offline


Registered: 01/03/09
Posts: 11233
Loc: Illinois
Suprised? Don't be. Ford has been calling for 20wt oil for 10-11 years. I even used M1 5-20 in 1978 in engines calling for 30-40wt oil.
_________________________
2007 Ford Fusion 179,000 miles
M1 0-20 AFE
2007 Ford Focus 153,000 miles
M1 0-20 AFE
10,000 mile OCIs on both engines
M1 ATF
M1 10-30 in all OPE
MC filters


Top
#2500709 - 01/20/12 08:42 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
crazyoildude Offline


Registered: 07/23/08
Posts: 8196
Loc: New Jersey
being in the engine business i will tell you that if that were mine i would use 5w20 for a number of reasons first of all that is what ford tells you to use and second 5w20 is usually a better oil...

I always say this... But... If you know more than the company that built that engine all the power to you..
Can you use 5w30? sure...is 5w30 better for your engine? no!
_________________________
In Automotive class when i was a kid i had a shop teacher that always said ..Its Nice To Be Nice! That is one thing i always remembered..

Top
#2500710 - 01/20/12 08:42 PM Re: Can I use 5W30 instead of 5W20? [Re: k1rod]
Triple_Se7en Online   content


Registered: 12/04/04
Posts: 7093
Loc: 1/2 hr. north of Detroit
Originally Posted By: k1rod
I bought a 2012 Ford Fiesta for my daughter and I was surprised to see that the car calls for 5W20 motor oil. Unfortunately (or fortunately depending on how you look at it), I have several cases of QS 5W30.


If you knew you had several cases of 5W-30, then why did you buy a 5W-20 vehicle?

Go ahead and use the 5W-30. It won't hurt anything but fuel mileage.

Top
Page 1 of 8 1 2 3 4 5 6 7 8 >