: After oil change noticed a drop in power



bass_sts
07-07-09, 09:24 AM
Anyone else get this.

Took it to Massey Caddillac of orlando last week, I think they may have changed the oil to a non-synthetic. Would this rob the engine of power or should I be worried.

Only other thing that occurred was a tire change.

0-60 time is now 7+ seconds (rough checking with stop watch)

Notables:
2005 V8 44K

seemed noticeably peppier last week.

Thoughts...? Worries?

Dadollac1
07-07-09, 10:07 AM
Do you have onstar?
If so have them run a dianosis, if not at 44k your warranty should still be in effect.

K STS
07-07-09, 11:30 AM
warranty ends at 40k

WillySTS
07-07-09, 12:00 PM
warranty ends at 40k

Factory warranty ends at 50,000 miles.

Anyway, I had a customer in a SAAB version of the GMC Envoy tell me that same thing after having the oil changed at Jiffy Lube. The only thing we could figure is that they used the wrong weight(10w-30 instead of 5w-30) oil...maybe.:cookoo: We changed it back to 5w-30 and she said it was alright after that. All of my friends who have switched over to Amsoil 0w-30 with me report a slight performance increase. I'm not saying that it is true and I did not promise them that...this is what they say. :halo:So, mabe you are correct.

porkfarm
07-07-09, 12:14 PM
Check the oil level also. Maybe an overfill.

EChas3
07-07-09, 02:57 PM
Porkfarm is right. Overfill is an easy mistake because even with a filter change our N*'s can take less than the 8 quarts noted in the manual.

I'm convinced that my 2006 did not have 5W30 Mobil in it when I bought it. I wasn't in a huge hurry to change it. Since I did I have gotten at least 1MPG better mileage. I don't trust my senses on the performance side and don't have accurate times.

The 2007 was a Hertz and we changed the oil & filter on day 1.

K STS
07-07-09, 03:47 PM
Where do you see the factory warranty ends at 50,000? I called the dealership with my vin and they said 40,000.

Dadollac1
07-07-09, 03:55 PM
ALL 05 and up STS's have a 50,000 mile or 4 year in service date warranty, or whichever comes first

bass_sts
07-07-09, 04:55 PM
It's going in tomorrow morning for them to check it..
quite frustrating really.

WillySTS
07-07-09, 05:00 PM
ALL 05 and up STS's have a 50,000 mile or 4 year in service date warranty, or whichever comes first

All Cadillacs...4 years/50,000 miles

you can't always trust what dealership personel will tell you:tisk:

KARL DAHLEN
07-07-09, 05:16 PM
All NEW cadillacs. CPOs have a 6 year 100K from in-service date.

K STS
07-07-09, 09:00 PM
Ok so a 2006 STS Factory warranty is 4 years/40,000 miles. Not ALL cadillacs are 50,000.

WillySTS
07-07-09, 09:15 PM
Ok so a 2006 STS Factory warranty is 4 years/40,000 miles. Not ALL cadillacs are 50,000.

I've had this kinda trouble my whole life...here it is in writing :annoyed:

Service Information
[/URL] (http://gsi.xw.gm.com/si/home.do) (http://gsi.xw.gm.com/si/numberSearchLink.do) (http://gsi.xw.gm.com/si/bulletinSearchLink.do)


[URL="http://gsi.xw.gm.com/si/publications.do"]2006 Cadillac STS (http://gsi.xw.gm.com/si/mainHelp.do) | Cadillac Warranty and Owner Assistance Information (http://gsi.xw.gm.com/si/showPubSection.do) | Warranty and Owner Assistance Information (http://gsi.xw.gm.com/si/showPubSubsection.do) | Warranty and Owner Assistance Information (http://gsi.xw.gm.com/si/showPubServiceInfoTypes.do) | Introduction (http://gsi.xw.gm.com/si/showDocumentList.do) | Document ID: 1430534

Warranty Coverage at a Glance
The warranty coverages are summarized below.
<A href="http://gsi.xw.gm.com/si/showDoc.do?docSyskey=1430534&pubCellSyskey=72599&pubObjSyskey=1430534&from=sm&laborOpCode=&cellId=72599#ss1-1430534">New Vehicle Limited Warranty

Bumper-to-Bumper (Includes Run-Flat Tires)



• Coverage is for the first 4 years or 50,000 miles, whichever comes first.

Force-1
07-07-09, 11:49 PM
Ok so a 2006 STS Factory warranty is 4 years/40,000 miles. Not ALL cadillacs are 50,000.

Copied straight out of my 06 STS owner's manual:

Cadillac Owner Privileges™
Roadside Service provides several Cadillac Owner Privileges™ at “no charge,” throughout your Cadillac Warranty Period—48 months/50,000 miles (80 000 km).

K STS
07-07-09, 11:52 PM
Wow! the dealer lied to me. He said it was over at 40,050 miles. *******. im TAKIN IT IN WHEN THE VANITY LIGHT IN THE VISORS GO OUT NOW, HOLLA

bass_sts
07-08-09, 02:00 PM
Couple of things, if you were under warranty take it back and get your refund if you paid something.

On topic,
Car went in today...
Turns out that the battery that I had installed not but two months ago was bad, this was a battery supplied by GM Pontiac (an orlando Dealer) said it was the correct one.

So I talked to the tech it came down to this:
Bad battery caused:
Low Voltage that then:
Began a system wide limp mode that includes:
Reduction in power
Improper shifting
Reduced MPG because of above
Weird radio errors (not witnessed)
NO CHECK ENGINE LIGHT :cookoo:

They changed the battery under warranty (actually they took my word for it and are currently waiting for proof from the Pontiac dealership if they don't get it for them I will stomp down there myself, but it was nice of them to get it done so if you need service Massey Cadillac Orlando on OBT)

Thats the last of it.. things are mostly back to normal, didn't have time to check the 0-60 but the mpg was immediately back to normal and the engine didn't seem to strain on the highway. :D

next2pool
07-08-09, 02:58 PM
That's interesting! I can't believe it didn't set a check engine code

EChas3
07-08-09, 03:22 PM
My wife's 1998 STS was a bit flakey on the electronics, too. I don't doubt this is another reason the designers would like to convert to higher voltage systems (48 Volts?) in cars.

I recall a buddy's 50th anniversary 'Vette had a power outlet that specified '12 Volt DC'. Are there already some high voltage systems deployed?

nguyendot
07-11-09, 03:45 PM
No, there aren't (except in electric cars).

It's too expensive to implement unless they do a complete rollover.

z06bigbird
07-11-09, 03:59 PM
You need to talk with my son. He claims his car gets faster just after an oil change. Compare notes, and do just the opposite of what he did. LOL

z06bigbird
07-11-09, 04:03 PM
Anyone else get this.

Took it to Massey Caddillac of orlando last week, I think they may have changed the oil to a non-synthetic. Would this rob the engine of power or should I be worried.

Only other thing that occurred was a tire change.

0-60 time is now 7+ seconds (rough checking with stop watch)

Notables:
2005 V8 44K

seemed noticeably peppier last week.

Thoughts...? Worries?

Let's do this scientifically. Calibrate your stop watch. Or you could order one of those miracle gas savings devices on ebay. Aside from increasing gas mileage by xx %, they increase engine power by an even greater percentage. I recommend that you buy the most expensive one you can find. That way, if it does not work, you can rely on cognitive dissonance. That always works!!