Best Oil for turbo engine. - Page 6 - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

Fizz · 03-05-2015, 11:15 PM

Quote:

Originally Posted by Astroboy

So what are going to do? Switch to a different grade?

I don't know yet...hoping some oil experts may be able to comment on the report and provide suggestions.

Astroboy · 03-19-2015, 03:32 PM

Quote:

Originally Posted by Fizz

I don't know yet...hoping some oil experts may be able to comment on the report and provide suggestions.

Any luck?

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Koa · 03-19-2015, 03:38 PM

Quote:

Originally Posted by Fizz

I don't know yet...hoping some oil experts may be able to comment on the report and provide suggestions.

are you 2000% sure your turbo install and tune is up to par before determining whether or not the oil is to blame for most of that?

Fizz · 03-19-2015, 09:08 PM

Quote:

Originally Posted by Koa

are you 2000% sure your turbo install and tune is up to par before determining whether or not the oil is to blame for most of that?

I'm running a Sprintex kit, not turbocharged. Anyway I've checked and everything is good. The silicone levels are due to dirty air filter so I've replaced it. Fuel dilution was only minor, and likely caused when I was on a pretty rich (off the shelf) tune for a short period. The elevated oxidation is common when using ester based oils such as the Redline I was on. Apart from that all the other areas looked normal....and even the TBN was still in the healthy range so that's good.

Anyway I've replaced the oil to Penrite Racing 5w30 which has high zinc for added protection. Since I don't track the car I was advised that it's not necessary to go any higher than 30 weight. Will do another UOA in around 3000 miles time to see how it copes.

Flashfire88 · 03-19-2015, 11:06 PM

Currently running 5W-30 of Castrol Edge Dexos Approved for street/spirited driving, track days I switch to 10W-40 to compensate for oil pressure drops.

DAN_BRZ · 03-20-2015, 09:33 AM

how many ppl running a higher viscosity oil to maintain oil pressure at high temps is running an oil cooler?? if your running a cooler why is there a need of a xW/30-40 etc??

Astroboy · 05-14-2015, 05:20 PM

Should I invest in an oil cooler if my oil temp never exceeds past 104c? I usually
Lay off the throttle when I see it go to 104

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Astroboy · 05-23-2015, 10:45 PM

Quote:

Originally Posted by Flashfire88

Currently running 5W-30 of Castrol Edge Dexos Approved for street/spirited driving, track days I switch to 10W-40 to compensate for oil pressure drops.

How many miles on the 5w30 so far

Chad86 · 08-29-2015, 08:11 PM

Quote:

Originally Posted by Fizz

I'm running a Sprintex kit, not turbocharged. Anyway I've checked and everything is good. The silicone levels are due to dirty air filter so I've replaced it. Fuel dilution was only minor, and likely caused when I was on a pretty rich (off the shelf) tune for a short period. The elevated oxidation is common when using ester based oils such as the Redline I was on. Apart from that all the other areas looked normal....and even the TBN was still in the healthy range so that's good.

Anyway I've replaced the oil to Penrite Racing 5w30 which has high zinc for added protection. Since I don't track the car I was advised that it's not necessary to go any higher than 30 weight. Will do another UOA in around 3000 miles time to see how it copes.

How is this oil holding up with the Penrite? Did your engine oxidation, etc. go away?

Quote:

Originally Posted by DAN_BRZ

how many ppl running a higher viscosity oil to maintain oil pressure at high temps is running an oil cooler?? if your running a cooler why is there a need of a xW/30-40 etc??

Can we get an answer to this?

Quote:

Originally Posted by Astroboy

Should I invest in an oil cooler if my oil temp never exceeds past 104c? I usually
Lay off the throttle when I see it go to 104

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@Astroboy did you end up getting an oil cooler and/or did you go with 5W30 oil? My Toyota manual shows no mention of 5W30, but I saw above apparently the Subaru manual does. I am installing my FI kit soon and I am looking to switch the oil at the same time. Trying to get an idea of the best oil type to choose.

Astroboy · 08-29-2015, 08:50 PM

Quote:

Originally Posted by Chad86

How is this oil holding up with the Penrite? Did your engine oxidation, etc. go away?

Can we get an answer to this?

@Astroboy did you end up getting an oil cooler and/or did you go with 5W30 oil? My Toyota manual shows no mention of 5W30, but I saw above apparently the Subaru manual does. I am installing my FI kit soon and I am looking to switch the oil at the same time. Trying to get an idea of the best oil type to choose.

I switched to a 5w30 but have read by avo that a good 0w20 oil should be fine. I use motul and now have an oil cooler by avo to go with my avo kit. Avo-astic

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GsxrMe · 08-30-2015, 11:21 AM

5w30 Genuine Subaru Synthetic Oil - Every 3500 miles. Oil temp are very solid without oil cooler in south Florida.

Astroboy · 08-30-2015, 02:57 PM

Quote:

Originally Posted by GsxrMe

5w30 Genuine Subaru Synthetic Oil - Every 3500 miles. Oil temp are very solid without oil cooler in south Florida.

How many miles on the charger

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Jonde875 · 08-30-2015, 03:56 PM

Im using now Toyota 5W-30 C2 but thinking change to Castrol EDGE Professional 0W-30 C3 Titanium FST.

R2RO · 08-30-2015, 08:27 PM

I'm using Motul 8100 0w20

03-20-2015, 09:33 AM	#76
DAN_BRZ Senior Member Join Date: Apr 2013 Drives: 2013 WRB BRZ Sport Tech Location: Mississauga Posts: 413 Thanks: 311 Thanked 122 Times in 73 Posts Mentioned: 7 Post(s) Tagged: 2 Thread(s)	how many ppl running a higher viscosity oil to maintain oil pressure at high temps is running an oil cooler?? if your running a cooler why is there a need of a xW/30-40 etc?? Last edited by DAN_BRZ; 03-20-2015 at 10:14 AM.

08-30-2015, 11:21 AM	#81
GsxrMe Senior Member Join Date: Jul 2015 Drives: Late 2014 Subaru BRZ Location: Cape Coral, FL Posts: 557 Thanks: 20 Thanked 183 Times in 139 Posts Mentioned: 5 Post(s) Tagged: 2 Thread(s)	5w30 Genuine Subaru Synthetic Oil - Every 3500 miles. Oil temp are very solid without oil cooler in south Florida. __________________ 2014 Subaru BRZ FBM Turbokit: GTX3076R - ECUTEK HRI FlexFuel tune - FBM 3" Turboback Exhaust - 550cc Injectors - Walbro 485 Fuel Pump - 4bar Map Sensor - FBM Oil Pan - ACT SB7-XTSS - AMSOIL all fluids - Forester XT Oil Cooler - Cusco engine, trans mounts - Whiteline rear differential bushings - Perrin shifter bushing - Firehawk 235/45/17 - AEM Failsafe

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