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Oil recommendation for LS swapped Miata #4621572
01/02/18 10:16 AM
01/02/18 10:16 AM
Joined: Jun 2009
Posts: 34
FL
Ace_Protege Offline OP
Ace_Protege  Offline OP
Joined: Jun 2009
Posts: 34
FL
I have a 95 miata with an L33 LS based engine(5.3 from 2005 silverado, alum. block, 10.5 compression, mild camshaft, roller lifters, Stock rotating assembly with new bearings and pistons/rings) Obviously the car is a weekend car and sees <5000 Miles per year, but it does see drag racing and other hard driving. The tune is a bit on the rich side so it likely has some contamination, this will be the second oil change after break in. I will be sending a sample in to Blackstone for analysis from this drain. For break in I used SAE30 with a break in additive for 100 miles, then I used the bulk oil we have at our shop (amalie 5w-40 elixir) for 2500 miles, both times I used an OE ACDelco filter.
I live in Central Florida where the climate is pretty hot. I'd like to use a high quality oil to offer the most protection possible, within reason of course.
Thanks in advance for all your suggestions.

Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4621594
01/02/18 10:40 AM
01/02/18 10:40 AM
Joined: Dec 2011
Posts: 5,100
North Carolina
rooflessVW Online content
rooflessVW  Online Content
Joined: Dec 2011
Posts: 5,100
North Carolina
Mobil 1 0W-40 should serve you well.


"Zed's dead baby, Zed's dead."
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4621619
01/02/18 11:00 AM
01/02/18 11:00 AM
Joined: Dec 2016
Posts: 7,132
Waco, TX
Linctex Offline
Linctex  Offline
Joined: Dec 2016
Posts: 7,132
Waco, TX
I see you are in Florida.

All I have ever run in my drag cars is 15W-40 (Rotella, Delo, Delvac etc)

That's a VERY tough engine that doesn't need any type of "boutique" oil.


"The evidence demands a verdict".
(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4621698
01/02/18 12:09 PM
01/02/18 12:09 PM
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 6,075
Kalifornia Kollective
+1 laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4621706
01/02/18 12:19 PM
01/02/18 12:19 PM
Joined: Feb 2003
Posts: 7,685
Jupiter, Florida
Cujet Offline
Cujet  Offline
Joined: Feb 2003
Posts: 7,685
Jupiter, Florida
A synthetic 10W-30 or 5W-40 is a good choice for a mild engine in Florida. 15W-50 synthetic is the right choice for track days.


People who count on their fingers should maintain a discreet silence.
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4621799
01/02/18 01:49 PM
01/02/18 01:49 PM
Joined: Sep 2016
Posts: 524
Fairfax, VA
TinyVoices Offline
TinyVoices  Offline
Joined: Sep 2016
Posts: 524
Fairfax, VA
Most of my LS buddies turbo or NA run an hdeo 5w40


2010 Mazda RX8 Sport - 37k miles - ????
2006 Toyota Matrix XR AWD (Wife) - 130k miles - Valvoline Max Life 5w30
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4622098
01/02/18 07:04 PM
01/02/18 07:04 PM
Joined: Apr 2015
Posts: 288
Georgia
Charlie2015 Offline
Charlie2015  Offline
Joined: Apr 2015
Posts: 288
Georgia
Castrol GTX 20w50


1998 Honda Accord EX 2.3L Auto (Sold) 214k mi
2009 Scion tC Manual (Daily Driver) 165k mi
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4622125
01/02/18 07:27 PM
01/02/18 07:27 PM
Joined: Apr 2008
Posts: 37,917
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,917
Ontario, Canada
M1 0w-40. It's what GM uses in their race program Corvettes IIRC.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Oil recommendation for LS swapped Miata [Re: rooflessVW] #4622188
01/02/18 08:27 PM
01/02/18 08:27 PM
Joined: Dec 2005
Posts: 677
New England
jdavis Offline
jdavis  Offline
Joined: Dec 2005
Posts: 677
New England
Originally Posted By: rooflessVW
Mobil 1 0W-40 should serve you well.


end of thread

Re: Oil recommendation for LS swapped Miata [Re: OVERKILL] #4622206
01/02/18 08:48 PM
01/02/18 08:48 PM
Joined: Apr 2010
Posts: 13,537
Chicago, IL
dparm Offline
dparm  Offline
Joined: Apr 2010
Posts: 13,537
Chicago, IL
Originally Posted By: OVERKILL
M1 0w-40. It's what GM uses in their race program Corvettes IIRC.


Never heard that before, but GM is switching over to a new M1 0w40 variant as the FF/service fill for Corvettes starting in 2019 MY. Details are still a bit hazy.


2017 Chevrolet Corvette Grand Sport
Re: Oil recommendation for LS swapped Miata [Re: dparm] #4622239
01/02/18 09:25 PM
01/02/18 09:25 PM
Joined: Apr 2008
Posts: 37,917
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,917
Ontario, Canada
Originally Posted By: dparm
Originally Posted By: OVERKILL
M1 0w-40. It's what GM uses in their race program Corvettes IIRC.


Never heard that before, but GM is switching over to a new M1 0w40 variant as the FF/service fill for Corvettes starting in 2019 MY. Details are still a bit hazy.


In trying to find it, I discovered that it is the recommended service fill for the Z06 when sold in Europe as per this thread.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4622258
01/02/18 09:37 PM
01/02/18 09:37 PM
Joined: Apr 2008
Posts: 37,917
Ontario, Canada
OVERKILL Offline
OVERKILL  Offline
Joined: Apr 2008
Posts: 37,917
Ontario, Canada
Also, somewhat amusing, Mobil 1 5w-30, 0w-40 and 15w-50 show up on the Mobil 1 Racing product website. M1 0w-40 carries the following description:

Quote:
Used as factory fill in many production road car models and continues to win in the IMSA WeatherTech SportsCar Championship and multiple Porsche Customer Racing series.


Porsche Customer Racing series doesn't sound overly spectacular, however the former includes two Corvette Race teams and two Porsche GT teams.

The Corvette teams have some pretty good records in the 12 and 24hr races. They are presently in 1st place in GT Le Mans.


2018 RAM 1500 Big Horn EcoDiesel
2016 Grand Cherokee SRT
Re: Oil recommendation for LS swapped Miata [Re: Ace_Protege] #4622420
01/03/18 05:04 AM
01/03/18 05:04 AM
Joined: Jun 2016
Posts: 552
South OZ
KL31 Offline
KL31  Offline
Joined: Jun 2016
Posts: 552
South OZ
If you're in warm weather 15W40 would never be an issue either so up to you really. But on a more serious note, how fast would that thing be? Vids? grin


95 MX-3 2.5L|Shell Helix Ultra 5W40|Wix 51356
04 Focus 1.8L|Wesfil Cooper WZ63|Valvoline MST 5W30
05 Kluger 3.3L|Wesfil Cooper WZ418|Magnatec 10W30 Semi Syn

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