Which / What Oil Should I Use? [Merged]

[MidnightGSX]

Based on what I'm reading here, seems like most of you guys are using 10W-30. I'm currently using Castrol Magnatec 10W-40 on my '98 Eclipse GS. I'll try 10W-30 with the next oil change.

 

[badbird]

I run Shaeffer oil supreme 7000 in my car (90 tsi) 10w30 it has never given me problems with anything. They make really good oil and have some unique additives, check out there site at
www.schaefferoil.com/
We also use a different weight shaeffer's for a high HP Evo and it holds up really well, only downside is not many places sell it locally where I'm from so you have to order it online.

 

[dfootedsm]

Any opinions on Mobil 1 15w 50 ?

 

[curt-s]

I moved back from Rotella T 15W-40 to 10W-30. 2psi less at idle (18psi @ ~900rpm). Still too much at speed.. 60psi at ~2000rpm. OFH needs work this summer. Again.
However, I don't think I'll ever move away from Rotella.

 

[xxxSpetsnazxxx]

10w-30 Castrol Syntec full synthetic-summer
5w-30-winter

 

[KB90TSIAWD]

I just switched to synthetic at 118k. Gonna see if there are any leaks. Anywayz, i used Pennzoil 10/30 and the Mobil 1 oil filter. Did plugs also, just the normal Densos.

ngk Rs

 

[Rustic gst]

ok so i used to have a 99 gst with 200k miles. i used to run 20w50 valvoline vr1 oil with the high zinc for added engine protection. it used to burn some oil with 10w30 so i used the 20w50 cause ive read that a lot of people use this weight in their dsms and haven't had any ill effect. now i picked up a 96 gsx with 122k miles, being that the engine has less miles should i still use the 20w50vr1 oil, or should i use 10w30 royal purple? my car is all stock no engine mods whatsoever.

 

[red_devil]

That weight is a bit unnecessary. Just run 10w30.

 

[boostdawd]

Fp swears by vr1 racing. I run it on my car with 190k. It's great for your turbo. Coming from guys who build their turbos and backed up by data, I'll take it!

Royal purple is overpriced in my opinion and vr1 is cheap. Just throwing my .02

 

[Rustic gst]

the book says 20w40 in temps above 32f. now during the summer here in new mexico it doesn't get that cold. 20w50 is only a litle bit more thick when its warm plus you get all that good zinc which is a anti wear additive right?

 

[Dstarperformance01]

I've run 10w30,10w40,15w40. Depends on the time of the year and driving conditions imo. I also change mine every 2500 miles. Change on a regular schedule and it's not a race car then brand doesn't matter.

 

[AdR]

I'll take VR1 over most oils everyday. I think the only oils that I'd cobsider superior are Redline, JoeGibbs Racing and maybe Amsoil. High ZDDP content keeps metal to metal contact parts happy.

 

[19gsx91]

Brad Penn. 10w 40. Why are you asking about 2 different weights from 2 different brands?

 

[Rustic gst]

because i used 20w50 in my old car that had 200+ miles. the gsx currently has 120k so i was thinking maybe a thinner oil because it isnt as worn

 

[Dstarperformance01]

High ZDDP content keeps metal to metal contact parts happy.[/QUOTE]

Just another way to get more $$ from the consumer imp. Just like the 10k oil !

So does proper lubrication. I don't believe all the hype on motor oil. Change it often enough and it shouldn't matter that much. I've seen many failures in all types of cars dailys and purpose built race cars due to improper lubrication and or lack of a strict maintenance schedule not because a certain brand of motor oil was used.

 

[Rustic gst]

i change my oil and filter every 2000 miles, and i dont race my car, just the occasional spirited driving. should i just get some synthetic 10w30 and change it every 2000 miles

 

[Dstarperformance01]

i change my oil and filter every 2000 miles, and i dont race my car, just the occasional spirited driving. should i just get some synthetic 10w30 and change it every 2000 miles

That's TOTALLY up to YOU. If it were me I would do as you stated with 10w30 syn and change on a frequent schedule(whatever you decide) and is cost-effective. But, that's me. There is no point in spending any more money than you have too, to get the same results.

 

[Rustic gst]

ok im gonna get some 10w30 vr1 oil and change it every 2000 miles, thanks for the imput

 

[Type1DSMr]

Brad Penn 10w30 here. Amazon has the best deal per case. Just a thought.

 

[Dstarperformance01]

Brad Penn 10w30 here. Amazon has the best deal per case. Just a thought.

I'm all about paying as little as possible to get the job done right!!

 

[Archer Fabrications]

I use nothing but 20w50 vr1 in my dsm. Even with 100 miles on the motor

 

[motomattx]

Motor oil is up there with abortion, religion and republican or democrat...one of the few things that guys will actually go to fists over. Use what you like, thicker oil provides better hot engine protection and higher oil pressure, thinner does the opposite, some guys have to run certain viscosity due to their local temps thats all.

 

[J Fresh]

ok im gonna get some 10w30 vr1 oil and change it every 2000 miles, thanks for the imput

Damn, every 2,000 miles of DD use? Am I Crazy but I definitely don't change my oil that frequently.... I use Mobil 1 high mileage synthetic 5W30 and change it every +/-7K... I also add a little bit of lucas heavy duty oil stabilizer and engine oil stop leak just to be safe since its got 69k miles and I highly doubt the previous owners changed any seals/gaskets... the only gaskets I've replaced are the cam shaft seals, valve cover, and ones you do when changing the balancing and timing belts...

 

[SasaniFab]

Best motor oil I've ever ran vr1 20w 50, do yourself all a favor and run that oil...... you have to change it more frequently but it's amazing oil....ran it in all my Honda, Subarus and now mitsubishis

 

[red_devil]

I get people running a thicker weight for race cars or built engines, but 20w50 on a oem motor for dd is just not needed. You are increasing oil pressure, reducing mpg, and it will also take longer to warm up and cool down. I'd also recommend changing it less often. Even the cheap store brand oil will be fine after 3000 miles. Don't poor your money down the leaking oil can.