Which oil?

**meeler52** · 11-15-2005, 09:23 AM

Do you guys use synthetic or conventional oil, getting ready to change mine and wondering which is better.

**98LSGUN** · 11-15-2005, 09:25 AM

Synthetic. Royal Purple all around

**98LSGUN** · 11-15-2005, 09:26 AM

BTW welcome to the board

**Chevypowr** · 11-15-2005, 12:51 PM

Mobil 1 5W-30, cheaper than royal purple and felt the same if not more of a differrence. I used royal purple first, then switched to mobile. I have 100,000 miles on my SS actually just broke 100 yesterday, never granny shift, see the red daily. Still OG head gasket, no smoke out the exhaust, feels like it's running stronger now than when i got it 50,000 miles ago.

**Sarge** · 11-15-2005, 06:04 PM

Nobody can answer your question until you answer some questions.
What kind of driving do you do? Short trips/long trips...highway/around town what?...break it down into percentages of a average week driving for yourself.
Where do you live? What kid of oil change intervals are you after if any.....is 3 months or 3 thousand miles going to be your target or are you after 6 month 6000 mile oil change intervals....what modifications you got? In warranty I assume.....is money an issue? In other words....if a oil change cost you $100 3-4 times a year is that a big deal versus say $50 bucks 3-4 times a year? And one question I can answer for damn sure real quick....in the proper application synthetics and Dino's are both fine oils for your ride man....lets understand your oil "image" first....

**Chevypowr** · 11-15-2005, 06:21 PM

Right-on, he said it!

**Pulse Red GTO** · 11-15-2005, 06:43 PM

My GTO just rolled 3,500 miles. I had the dealership change it at 1,000 miles w/ regular oil. Then I just changed it again w/ regular oil at 3,000. I am going to change it again around 4,500 w/ either Mobil 1 or Royal Purple. I have always had Mobil 1 in all my other cars, but though I would try Royal Purple. Also I have always switched right to synthetic, but I am taking a different approach on the goat!

**Sarge** · 11-16-2005, 03:55 AM

Yup...nothing to good for your GTO.....
Royal Purple 5-30 11.0cSt @100c
Mobil 1 5-30 10 cSt @100c
Amsoil 5-30 11.6 cSt @100c

**Chevypowr** · 11-16-2005, 05:31 AM

I also always ran mobile 1 and I thought I would try the royal purple and wasn't that pleased with it. But everyones got their own opinions. Maybe it will work out for you, it seams to have worked for many.

**Sarge** · 11-16-2005, 06:50 AM

I'm not a Royal Purple fan.....better oils for the LS1 out there for a helluva lot less money IMHO.

**Chevypowr** · 11-16-2005, 07:34 AM

Right-on

**98LSGUN** · 11-16-2005, 07:41 AM

How much are you all finding Royal Purple for? I'm paying 4.95 Qt when the Mobil One is going for 5 - 6 bucks a Qt. Where are you shopping???

**Chevypowr** · 11-16-2005, 08:19 AM

I get mobil 1 in the 5 qt. jug for like $24 I think from Wal-mart. Royal Purple in my area is on average $6.50

**Sarge** · 11-16-2005, 08:50 AM

They sell it at NAPA here for like $7 bucks a quart....that is just crazy.....

**Chevypowr** · 11-16-2005, 08:58 AM

yeah thats absurd

**98LSGUN** · 11-16-2005, 09:01 AM

That is crazy. What do you use Sarge?

**Sarge** · 11-16-2005, 09:36 AM

Well I aint stock so dont try this at home

5 quarts Shell Rotella 15-40 2 quarts Amsoil 15-40 and 15 oz of Valvoline Syn Treatment ( Moly and Boron)...when I was stock ( or close to it)...Amsoil 0-30 or Amsoil 10-40....

**98LSGUN** · 11-16-2005, 09:59 AM

dayum your car is thirsty...

**PaganEgyptian** · 11-16-2005, 10:23 AM

I like running middle ground, I use Semi-Synthetic Mobil 5W20 (6 qts), more durable than Dino but cheaper than full synthetics. In my old little 4 cylinder, I ran Rotella 15W40 during summertime, Its a really tough oil compared to Mobil Delo 15W40 will isnt near the quality Shell is.

**Sarge** · 11-16-2005, 03:18 PM

Semi Syn means it has less that 5% synthetics in it...why not just Dino man?

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