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Is 5w-40 oil alright to use?
Is a 5w-40 weight oil alright to use in my SVX? I don't believe that weight was around when our cars were manufactured so there's no info in the manual about it. I'm looking at the full synthetic Rotella T6 5-40. We use it in our 05' Baja turbo and have had great results with it.
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1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#2
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Re: Is 5w-40 oil alright to use?
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Also I look at this these cars are many years old now unless you rebuilt the engine the tolerances are probably looser then stock so that thicker oil will help |
#3
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Re: Is 5w-40 oil alright to use?
Unless you're in the Arctic, go for it. I run either the 5-40 or 0-40 T6 in my Legacy, depending on what's on sale. With blessings from Blackstone Labs I've been able to push my oil change intervals out to 10,000 KM (6000 miles), so between that and buying oil by the barrel I've managed to save quite a bit of money with Rotella.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#4
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Re: Is 5w-40 oil alright to use?
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1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#5
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Re: Is 5w-40 oil alright to use?
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#6
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Re: Is 5w-40 oil alright to use?
Canadian Tire. I believe the 0-40 only comes in barrels though.
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Chris 92 Ebony Mica LS-L "A Rolling Restoration": 223,250 KM - Sleeping 2007 STi 6MT, Stance GR+ coilovers, PWR Rad, JDM hood badge, svxfiles 6000K HIDs, JDM Clear Corners, $15/15 min mod, $20/20 min mod, Energy Swaybar Bushings, Hella Supertones horns, Gold STi BBS rims, Group A lightweight crank pulley, A/C system removed, Custom header-back exhaust, Hybrid carbon/metal rear sway bar, restored headlights with CCFL halos 2008 Subaru Legacy Spec B - Diamond Grey Metallic - Sold 2020 Ram 1500 Longhorn - Red Pearl |
#7
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Re: Is 5w-40 oil alright to use?
Been using 5w40 also and have no problems. The engine seems to like it.
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#8
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Re: Is 5w-40 oil alright to use?
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The 0W-40 is a lot thinner when cold and flows into the tight clearances between the bearings, rings and oil passages of a newly rebuilt or newer engine. After breaking in my new engine with conventional oil (5 changes in 1000 miles) I started the 0W-40. The Mobil 1 0W40. It is closer to a 10W30 than a 10W40 at operating temperatures. It has an excellent HTHS viscosity, so it shouldn't shear even in an STi engine under stress. It also has great low temperature viscosity for cold climates. One other thing to note is that the Mobil 1 0W40 has a very high TBN value, which means it is great for extended oil change intervals.in my case every three years with only a filter change and new oil annually. If you want some extra seal conditioners to hold off leaks on notoriously leaky Subaru engines, either blend the M1 0W40 with the M1 5W30 HM or add Lubegard Bio/Tech Engine Protectant to the M1 0W40 oil. I was not looking for the seal conditioners of a high mileage oil , which you may need. The Lubegard product adds some seal conditioners and a special polar ester molecule that creates an additional protective coating on engine parts. The added ester film on the metal surface will help avoid damage when you start the car after it has sat for a long time. The recommendations were from Blackstone Labs, which does my used oil analysis. Along with consultations with Mobil 1 directly. .
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. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . |
#9
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Re: Is 5w-40 oil alright to use?
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. Subaru Ambassador 1996 Polo Green LSi #216..138,100 miles...SOLD JFICX8659TH100216.....Date of Manufacture: November 16, 1995..... Fuji Heavy Industries..Ōta North Plant....Ōta City,. Gunma Prefecture, Japan In-Service Date: January 2, 1997 "The Pristine Green Polo Machine” First Polo Green on the Network First Clear front turn signals, JDM Alcyone hood emblem, rear panel, and BOXER engine cover on the Network (US) (2000) First 5000K HID factory fog lights (2007) First SVX JDM BBS wheels on a USDM SVX (2013) HID lighting (5000K) for headlight and H3 fog lights, PIAA SuperExtreme 120W high beams, rebuilt EG33 longblock, Cometic head gaskets, Phase II flexplate, AMR aluminum radiator with custom silicone hoses, 160A high-output alternator in aluminum-ceramic coated case, new design alternator wiring upgrade v.4, rare factory headlight protectors, refinished JDM BBS mesh aluminum wheels and custom, polished billet aluminum new hex center caps, LED grille mod, R1 Concepts high-carbon cryo slotted rotors, Akebono ceramic pads, Goodridge S/S braided brake lines, Smallcar Stage 1 shift kit, ThermalTech aluminum/ceramic-coated valve covers, Energy Suspension urethane front & rear swaybar bushings, Bontrager22 rear swaybar with QS Components Chromoly Teflon/Kevlar endlinks, "$15.00/5 minute" suspension mod. Hella Supertone horns, Custom stainless steel exhaust system with 2" headpipes, Magnaflow cats, AeroTurbine AR25 resonator /AWD "Bullet" muffler. R.I.P. 2010 Subaru Outback Limited 2.5 CVT...338,000 miles. Totaled by a 1,300 lb. COW March 4, 2016 2014 Hyundai Avante Limited ...178,000 miles. Actually quieter and smoother than the Outback 2007 Mazda Miata MX-5 PRHT...102,000 miles. Plenty of parts, service and windshields. 4th Registered Network member —2/21/2001 My NEW locker..I...My Email..I..Wikipedia/SVX . . |
#10
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Re: Is 5w-40 oil alright to use?
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Tony 1996 Polo Green Subaru SVX LSi, 168,XXX miles, Redline D4 ATF, Redline 75W90 gear oil, K&N HP-4001 Oil Filter, Mobil 1 5W50 FS (3qt) and 5W30 High Mileage (4qt) Oil Blend, Motul RBF600 Brake Fluid, AC Delco A975C Air Filter, NGK BKR6EIX-11 plugs, Centric Rotors, Power Stop Evolution Carbon Fiber Ceramic Brake Pads 2005 Gray Acura RL, 165,XXX miles, Redline D4 ATF with Lubegard Platinum Protectant, Mobil 1 5W20 High Mileage Extended Performance Oil 2009 Red Toyota Venza, 123,XXX, Mobil 1 5W30 High Mileage Oil 1992 Red Ferrari 348 ts, 82,XXX, Redline everything |
#11
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Re: Is 5w-40 oil alright to use?
svxcess,
Where's the best place to buy Lubegard Bio/Tech Engine Protectant?
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1997 Boudreaux LSi 1994 SVX LSi(SOLD) Kool Blue air filter, 4500k HID's, airbox mod, Hella horns, WRX 6 disc stereo, Infinity Reference and Clarion Pro Audio speakers, Infinity basslink sub, ECUtune Stage 1v5, ECUtune TCU, Power mode mod, Mad muffler mod v1.3 |
#12
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Re: Is 5w-40 oil alright to use?
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https://www.amazon.com/Lubegard-3090.../dp/B0002JMLRE
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1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
#13
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Re: Is 5w-40 oil alright to use?
Running Mobil 1 5W-40 right now, 90-some thousand miles on the engine. Ran it for 10k miles last time and the old oil looks almost new. BUT, I'm not having my oil tested. So, all I can say for sure is that my car is still running well.
Weird coincidence, too, that I took a trip right after the oil change and got 28 mpg. Can't be the oil, right? Prior to that, I'd never recorded better than 24 mpg. |
#14
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Re: Is 5w-40 oil alright to use?
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I use the Castrol in my Audi A3, mainly because it's the cheapest when on sale. When Cdn Tire puts it 40% off it's less expensive than their house brand when it goes on sale at 35% off.
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Peter ART Cryogenic/Slotted Rotors, Stainless Steel Brake Lines, PWR Radiator, Tranny cooler, Stebro, Earthworm's Poly Differential/front & rear swaybar bushings, Koni Inserts and Mychailo SVX Sport Springs all 4 corners, Indigo Blue paint. Liquid Silver Wheels. |
#15
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Re: Is 5w-40 oil alright to use?
For what its worth, I going to be switching from traditional M1 10w-30 Full Syn to M1 high mileage Full Syn: (https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1).
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1994 SVX LSi JDM Tailbar and Grill, Clear Corners, 15min-mod, Nevin Blue RSB, G-FORCE SPORT COMP-2 Tires, Phenolic Spacers (Manifold & Throttle Body), SS Brake Lines, Maniac Electric Motors 160A Alternator 2008 Legacy 3.0R |
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