Today at Jiffy Lube...

El Diablo · Post by **El Diablo** » Thu Sep 21, 2006 12:36 am

Well today I went to Jiffy Lube. Not for my vehicles, I had to bring in 3 vehicles from work for oil changes. So while I was waiting. I asked the head grease monkey if anybody with a 2.3 turbo has ever come through and what do they get. He said something to the point of, he's seen lots and they all got 20/50 and raved about it. I got to thinking, 20/50 is offly thick. The guy that i bought my XR from(the orignal owner) said he only ran 10/40 in it since he bought it new. So I guess what I'm getting at is, does anyone have any thoughts about this and, what does everybody else use in their cars.

Mike McCreight · Post by **Mike McCreight** » Thu Sep 21, 2006 6:45 am

Mobil 1 15-50!

Reno3133 · Post by **Reno3133** » Thu Sep 21, 2006 8:12 am

woah woah woah 15-50...

i've been using 10-30... am i putting the wrong one in my cars??

Post by **Grayson** » Thu Sep 21, 2006 8:42 am

Nah, Ford recommends using 10W-30 in the XR, and there is nothing wrong with using it. Some people like to tinker with other grades, but there is no reason to believe that an engine running 10W-30 will somehow perform poorly. In contrast, I can think one or two reasons why not running 10W-30 could lead to poor performance.

Colin · Post by **Colin** » Thu Sep 21, 2006 1:26 pm

I run Partsmaster 5w30 (It's bottled by Ashland... basically the same stuff as Valvoline.) I think I'm going to switch to straight 30w on the next oil change, though. According to Maximum Boost, "In general, it is best to avoid wide-range, multiviscosity oils, as the materials added that create the multiviscosity capability are the same materials that cause [turbo bearing] coking." Granted, my copy of the book is about a decade old, so there may have been some changes in the composition of multiviscosity oils... but I'm still going to steer clear. Gotta do what I can, as the HX35 does not have a water-cooled center section.

Colin

Post by **Ed Lijewski** » Thu Sep 21, 2006 5:01 pm

The engine was build and tested to run best with 10W-30. Any thicker oil will cause the engine to work harder, and maybe at reduced performance effect. Thinner oil could/could compromise some bearing surfaces. So, why would you go differently, either way?

Me? Wal-Mart's synthetic 10W-30. Always and only.

YMMV

Post by **DPDISXR4Ti** » Thu Sep 21, 2006 5:10 pm

Corky is correct (in this case), and it's especially true of conventional oils - a 10W-40 conventional oil is a bad idea for a turbo motor. The further the spread, the more crap they need to dump in, but that's 2-3X so with a convention oil vs. synthetic. And I haven't even touched on the higher flash point of a synthetic, which clearly favors a synthetic oil in a turbo motor.

I don't know that I'd go so far as a straight 30W in MN though Colin. I realize you probably won't be driving the car in January, but don't you want to be driving it in November without having to let it warm up forever first?

Finally, back to the initial post.... Getting car advise from someone at Jiffy Lube is like getting advise on open heart surgery from the dude working the grill at Waffle House.

Post by **jasonty** » Thu Sep 21, 2006 5:55 pm

hey now, dont forget we all have a little buddy that works there :lol:

DPDISXR4Ti wrote: Getting car advise from someone at Jiffy Lube is like getting advise on open heart surgery from the dude working the grill at Waffle House.

brmcandy · Post by **brmcandy** » Thu Sep 21, 2006 6:39 pm

hey now, dont forget we all have a little buddy that works there

Is he still around................dare I ask?

Post by **DPDISXR4Ti** » Thu Sep 21, 2006 7:36 pm

brmcandy wrote:
hey now, dont forget we all have a little buddy that works there
Is he still around................dare I ask?

Last I heard he was telling everyone he had a girlfriend in AZ by the name of Candy.

Colin · Post by **Colin** » Thu Sep 21, 2006 10:57 pm

DPDISXR4Ti wrote:I don't know that I'd go so far as a straight 30W in MN though Colin. I realize you probably won't be driving the car in January, but don't you want to be driving it in November without having to let it warm up forever first?

November? Hell no - there's snow on the ground halfway through October. Plus, I always let the car warm up for a little while before driving it, and wait til it gets to 160+ until I really get into boost. It's worth the wait.

Colin

brmcandy · Post by **brmcandy** » Fri Sep 22, 2006 10:35 pm

Last I heard he was telling everyone he had a girlfriend in AZ by the name of Candy.

He is young enough to be my grandson

I just wondered why the board was not plastered with posts lately.....I did not know if he got banned, maybe gave his debit card to the wrong girl for pizza, or maybe got beaten up by a jealous husband. I hate to see anybody get hurt.

DereX · Post by **DereX** » Mon Sep 25, 2006 2:18 am

Ive always used 5-30 maybe I'll switch to 10-30 next oil change.

Post by **Ed Lijewski** » Mon Sep 25, 2006 2:01 pm

DPDISXR4Ti wrote:Corky is correct (in this case), and it's especially true of conventional oils - a 10W-40 conventional oil is a bad idea for a turbo motor. The further the spread, the more crap they need to dump in, but that's 2-3X so with a convention oil vs. synthetic. And I haven't even touched on the higher flash point of a synthetic, which clearly favors a synthetic oil in a turbo motor.

Well, that has the weight, er viscosity, of blather. Would I use 10W-40? If the owner's manual indicates it can be done under certain conditions, yes. Bottom line: the Owner's Manual is the guide on this; its recommendations were the result of extensive and rigorous testing and based on more than foam:

"San Antonio: Where automakers go to approve engine oil"
http://www.mysanantonio.com/business/st ... 0f617.html

YMMV