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Discussion Starter #1 (Edited)
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?
 

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05 STS4 V8 1SG with ACC
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Do you have onstar?
If so have them run a dianosis, if not at 44k your warranty should still be in effect.
 

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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.
 

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2006 STS 1SG & 2007 STS 1SE
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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.
 

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2006 STS V8, 1999 Seville STS
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596 Posts
Where do you see the factory warranty ends at 50,000? I called the dealership with my vin and they said 40,000.
 

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2006 STS V8, 1999 Seville STS
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596 Posts
Ok so a 2006 STS Factory warranty is 4 years/40,000 miles. Not ALL cadillacs are 50,000.
 

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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
http://gsi.xw.gm.com/si/home.do http://gsi.xw.gm.com/si/publications.do http://gsi.xw.gm.com/si/numberSearchLink.do http://gsi.xw.gm.com/si/newBulletins.do http://gsi.xw.gm.com/si/bulletinSearchLink.do http://gsi.xw.gm.com/si/feedback.do...1430534&feedbackType=STD&from=sm&laborOpCode= http://gsi.xw.gm.com/si/mainHelp.do


2006 Cadillac STS | Cadillac Warranty and Owner Assistance Information | Warranty and Owner Assistance Information | Warranty and Owner Assistance Information | Introduction | 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.​
 

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06 Cadillac STS
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352 Posts
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).
 

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2006 STS V8, 1999 Seville STS
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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
 

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Discussion Starter #16
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
 

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Cadillac Owners Troll
2019 CT6 Sport 3.0TT,2015 Luxury ATS , 2016 ELR, and Volt
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That's interesting! I can't believe it didn't set a check engine code
 

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2006 STS 1SG & 2007 STS 1SE
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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?
 

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14 CTS Vsport Black Tricoat/black, 16 Escalade Premium Lux Gray on Kona.
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No, there aren't (except in electric cars).

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

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Sedan de Ville, CTS
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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
 
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