synthetic oil? - Page 4

lokutus1 · 03-10-2006, 08:22 AM

Quote:

Originally Posted by klaymon

Right. So I think what he's driving at is, using a 0w-40 oil that covers such a broad range of temperatures is not really necessary since during 3000 miles you most likely will not see a swing of -10 degrees up to 90 degrees. I'm not arguing a point, I'm just rewording what was already said.

i agree. i basically just look at the 0w-40 as an all around alternative to 5w-30 for those that want an oil with a little bit broader range. most of us generally keep a bunch of extra oil on hand in the garage. you can use it year round and not have to keep a stock of several different oil weights. to some people, this is appealing. they can stick with this weight and forget it like the 5w-30.

klaymon · 03-10-2006, 10:36 AM

Which is exactly what I do (5w-30). I was just rephrasing what was said. I'm definitely not getting into this discussion on the technical merits. I use what I use and I like it. Carry on.

lokutus1 · 03-10-2006, 10:51 AM

cool

Rootus · 03-10-2006, 11:12 AM

One downside of 0-40, however, is that there is a lot of modifier going into the oil to give it that range, which means less base.

asf · 03-10-2006, 12:53 PM

That and heavier weight = lower fuel efficiency.

AS long as you are aware of the tradeoffs

Anyways, I think I've added (or detracted) all that I can to this conversation. Carry on

lokutus1 · 03-10-2006, 01:00 PM

Quote:

Originally Posted by asf

Anyways, I think I've added (or detracted) all that I can to this conversation. Carry on

i'm with asf. good luck with your oil choices fellas

91TB78 · 03-10-2006, 05:19 PM

Of course, during the hot summer months having a higher viscosity is generally a good thing since our motors run pretty hot. I'm using Amsoil 5W-40 Euro blend for winter and then come summer I'll go back to either 10W-30 or 10W40 Amsoil.

Although I don't notice any measureable loss and I check my oil all the time, I did notice a light amount of oil in my intercooler inlet. Proof enough that a catch can should help even stock cars.

Jas0nn · 03-10-2006, 05:36 PM

this might be a bit OT (and if so, ill start a new thread), but why is that some engines burn oil while others dont?? my uncle and i both have relatively new STi's running dino oil (his an 05, mine an 06). we both broke it in according to the "drive like you stole it method" and while my engine doesn't burn oil and at, his burns quite a bit. what could be so different between the engines?? i didnt seem to affect performance as our cars are always neck and neck; i can usually outdrive him on backroads, but i can do equally well in both cars.

91TB78 · 03-10-2006, 05:46 PM

Every car has too many variables to really isolate what is causing the burn. What type of oil and weight do you both run?

0bluesti4 · 08-17-2006, 01:12 AM

Quote:

Originally Posted by SUBIRU

i use amsoil, 5w-30. don't really know how long i'm suppose to go before oil changes so i just do it at the norm 3k intervals..

well i guess 3k been normal is an arguable point too...definately not normal is you go by the manual, which recommends it every 7,500...of course it does mention that if you are in severe weather and driving conditions you should do it more often - so maybe every 5,000 but every 3,000 seems like unnecessary waste of $$$....after all do you really plan on driving your STi forever or would you rather get something new in say 5 years that has 450hp???

booSTi561 · 08-19-2006, 03:14 PM

I just had my 30k mile service and noticed they changed the oil. Ugh. They use this crapy 10W30 Motorcraft and I burn that up like Ricky Bobby on a race track. I was using Mobil 1 Synthetic (in which I didn't burn an ounce of), but now Im going to switch to Royal Purple since I just found an awesome deal on the internet (comes out to $5.50 per a quart).

krees23 · 08-20-2006, 07:59 AM

I've been told by Subaru mechanics that synth oil is fine, but once you start using it you should stay with it.

08-20-2006, 07:59 AM	#57
krees23 Senior STI Driver Car: 2005 Subaru STi Fav Mod: Cobb Swaybars and Kartboy Endlinks Location: Minnesota Posts: 351 IWSTI Addict since: Oct 2005 Trader Rating: (1)	I've been told by Subaru mechanics that synth oil is fine, but once you start using it you should stay with it. This ad is not endorsed by this member. Please register or login to hide this ad.

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03-10-2006, 10:36 AM	#47
klaymon S204 Racer Posts: 3,075 IWSTI Addict since: Jul 2004 Trader Rating: (1)	Which is exactly what I do (5w-30). I was just rephrasing what was said. I'm definitely not getting into this discussion on the technical merits. I use what I use and I like it. Carry on.

03-10-2006, 10:51 AM	#48
lokutus1 Spec C Club Car: 05 WRB WRX STi Fav Mod: FYI, I'm a dude Location: Burlington, MA Posts: 2,369 IWSTI Addict since: Mar 2005 Trader Rating: (10)	cool

03-10-2006, 11:12 AM	#49
Rootus S204 Racer Car: 2006 STI Fav Mod: Recaros Location: Mahan, OR Posts: 2,900 IWSTI Addict since: Sep 2005 Trader Rating: (1)	One downside of 0-40, however, is that there is a lot of modifier going into the oil to give it that range, which means less base.

03-10-2006, 12:53 PM	#50
asf STI Driver Posts: 294 IWSTI Addict since: Feb 2006 Trader Rating: (1)	That and heavier weight = lower fuel efficiency. AS long as you are aware of the tradeoffs Anyways, I think I've added (or detracted) all that I can to this conversation. Carry on

03-10-2006, 05:19 PM	#52
91TB78 S204 Racer Car: 06 IX MR Location: Minneapolis, MN Posts: 3,666 IWSTI Addict since: Mar 2002 Trader Rating: (12)	Of course, during the hot summer months having a higher viscosity is generally a good thing since our motors run pretty hot. I'm using Amsoil 5W-40 Euro blend for winter and then come summer I'll go back to either 10W-30 or 10W40 Amsoil. Although I don't notice any measureable loss and I check my oil all the time, I did notice a light amount of oil in my intercooler inlet. Proof enough that a catch can should help even stock cars.

03-10-2006, 05:36 PM	#53
Jas0nn Professional STI Racer Car: Dolphin Grey B6 S4 Fav Mod: i miss my sti Location: Westchester, New York Posts: 645 IWSTI Addict since: Oct 2005 Trader Rating: (1)	this might be a bit OT (and if so, ill start a new thread), but why is that some engines burn oil while others dont?? my uncle and i both have relatively new STi's running dino oil (his an 05, mine an 06). we both broke it in according to the "drive like you stole it method" and while my engine doesn't burn oil and at, his burns quite a bit. what could be so different between the engines?? i didnt seem to affect performance as our cars are always neck and neck; i can usually outdrive him on backroads, but i can do equally well in both cars.

03-10-2006, 05:46 PM	#54
91TB78 S204 Racer Car: 06 IX MR Location: Minneapolis, MN Posts: 3,666 IWSTI Addict since: Mar 2002 Trader Rating: (12)	Every car has too many variables to really isolate what is causing the burn. What type of oil and weight do you both run?

08-19-2006, 03:14 PM	#56
booSTi561 Spec C Club Car: 04 PSM STi Fav Mod: Yakima Roof Rack Location: Jacksonville, FL Posts: 1,587 IWSTI Addict since: May 2005 Trader Rating: (0)	I just had my 30k mile service and noticed they changed the oil. Ugh. They use this crapy 10W30 Motorcraft and I burn that up like Ricky Bobby on a race track. I was using Mobil 1 Synthetic (in which I didn't burn an ounce of), but now Im going to switch to Royal Purple since I just found an awesome deal on the internet (comes out to $5.50 per a quart).