Which / What Oil Should I Use? [Merged]

JusMX141 · Jul 4, 2011

I've been using Mobil 1 15W50 year-round in my 420A since I bought it in 2002. It's still running great.

Do not use oil that is thinner than recommended; choose a thicker oil based on your environment and driving requirements.

1990gsxboosted · Nov 21, 2011

i am a beginner on this forum and im sorry if this has already been mentioned but if i remember correctly in boces a few years ago i cut open a fram and a napa filter. dont remember which models of filter but the fram had a filter bypass for when the car was first started so the oil could reach motor components. good idea. but frams system or at least at that time seemed like it couldnt snap back and filter again. full time bypass once its happened. the napa filter i cut open had an actual spring and could go back to filtering multiple times. i dont remeber but chances are the fram was a base model

numbertwelve · Nov 24, 2011

3.5Q mobil 1 5w30 and a bottle of lucas is what i have been running for about 2 years now makes a noticeable difference over running the full 4.5q of 5w30 in GTX, Mobil, syntec and royal purple. Reading some of these posts have me a bit puzzled seeing people running 15w40 20w50 ect ect. even in cold climates those winter ratings are really thick for these cars stock.

t-rexn8 · Dec 4, 2011

I have been running Mobil 1 10w30 in my car but am thinking about switching to Brad Penn mostly after reading the FP bulliten. My car is also making 500whp now and I think FP knows their stuff!

white92talontsi · Dec 4, 2011

Running 20-50 Bradd Penn myself. Running this because I purposely run my bearing tolerances on the loose side.

With my setup I see 38psi at a hot idle.

red_devil · Dec 4, 2011

Thats a lot of idle psi

brian102 · Dec 4, 2011

I personally run 5w30 valvoline with an amsoil filter. I really would like to try the amsoil 0w30 for winter. That should reach top of motor fast.

volcomsnow245 · Feb 1, 2012

What was the xpr version of royal purple on Fp's writeup. Is it the same stuff at napa? Do you have to get the synthetic version of brad pens 20w-50 or normal? Right now I'm using 10w-30 full synthetic royal purple. When it gets warmer I'm switching to royal purple 20w-50.

tarheels23 · Feb 13, 2012

has anyone ever used havoline 10w-30?

Lizardman · Feb 13, 2012

Turbo Vehicles:

High RPM Engines especially engine that are equiped with Turbo's need High viscocity.

Even though the Egnine recommend a certain weight I recommend 20/50 in all my racing and high RPM eninges.

Use Synthetic 20/50 by "Royal Purple" or "Lucas Oil". If you use the OEM recomendated Oil your vehicle should not be used as a Racer. It should be handle with care and be a daily driver. Change your standard oil every 3,000 miles no mater what.

If you want the best of both world I recommend to use Synthetic 20/50 by "Royal Purple" or "Lucas Oil". every 7,000 Miles.

Use the best oil filters possible.

volcomsnow245 said:
What was the xpr version of royal purple on Fp's writeup. Is it the same stuff at napa? Do you have to get the synthetic version of brad pens 20w-50 or normal? Right now I'm using 10w-30 full synthetic royal purple. When it gets warmer I'm switching to royal purple 20w-50.

That is really good advise as well.

tarheels23 said:
has anyone ever used havoline 10w-30?

Read up and research which engine oil have produce the most Parafin. Not like Wax Parafin. It is the burn off of the oil in which the residue build up like Wax Parafin. How the oil was refined and proven track records is what I look for.

I recommend:

Synthetic:
Lucas Oil
Royal Purple
Castrol GTX
Mobile 1

Synthetic Blend:
Only Castrol syntex

Conventional:
Castrol
Pennsiol

Never use:
Quaker State -
Valvoline -
Havoline -

All have To much build up - Valve Guide Congstion and Crank Bearing issues.

I have replace alot of cranks and valve guides in my life time. So I choose the best chemical make ups that have been receommend by true performance and not by Advertising thru drivers being sponserd just to have the name on its car. Beware that sponsered drivers recomendation on TV is not always the truth.

razordsm413 · Feb 13, 2012

I run Royal Purple 10-30 in just about every 4g I've owned. It holds up well to the heat.

raiderrodney · Feb 18, 2012

Lizardman said:
Turbo Vehicles:

High RPM Engines especially engine that are equiped with Turbo's need High viscocity.

Even though the Egnine recommend a certain weight I recommend 20/50 in all my racing and high RPM eninges.

Use Synthetic 20/50 by "Royal Purple" or "Lucas Oil". If you use the OEM recomendated Oil your vehicle should not be used as a Racer. It should be handle with care and be a daily driver. Change your standard oil every 3,000 miles no mater what.

If you want the best of both world I recommend to use Synthetic 20/50 by "Royal Purple" or "Lucas Oil". every 7,000 Miles.

Use the best oil filters possible.

That is really good advise as well.

Read up and research which engine oil have produce the most Parafin. Not like Wax Parafin. It is the burn off of the oil in which the residue build up like Wax Parafin. How the oil was refined and proven track records is what I look for.

I recommend:

Synthetic:
Lucas Oil
Royal Purple
Castrol GTX
Mobile 1

Synthetic Blend:
Only Castrol syntex

Conventional:
Castrol
Pennsiol

Never use:
Quaker State -
Valvoline -
Havoline -

All have To much build up - Valve Guide Congstion and Crank Bearing issues.

I have replace alot of cranks and valve guides in my life time. So I choose the best chemical make ups that have been receommend by true performance and not by Advertising thru drivers being sponserd just to have the name on its car. Beware that sponsered drivers recomendation on TV is not always the truth.

Amsoil is quality oil as well

Sent from my HTC Desire using Tapatalk

re-rx7 · Feb 18, 2012

Wrong. Valvoline is a great oil. They prduce Valvoline Vr1 oil. It is on a short list that Forced Performance recomends for their turbochargers. Im running 10w30 Vr1 in my T28 eclipse. Doing just fine.

PerfectStorm · Feb 19, 2012

I have always used Royal Purple 10w-30 full synthetic from Oct-April and from April -Oct I use 20w-50. I live in the desert so it gets super cold and then super hot. So that's the reason for the variation of weights. Hope this helps someone else...

PerfectStorm · Feb 19, 2012

I have always used Royal Purple 10w-30 full synthetic from Oct-April and from April -Oct I use 20w-50. I live in the desert so it gets super cold and then super hot. So that's the reason for the variation of weights. Hope this helps someone else...

lbgbandit · Jun 3, 2012

Any thoughts on royal purple 15w-40?

Calan · Jun 3, 2012

lbgbandit said:
Any thoughts on royal purple 15w-40?

It's expensive.

rixcidia · Jul 3, 2012

Is this good oil to use I just bought it my motor is fairly new will it matter with this oil???

Rix

Here a pic

red_devil · Jul 3, 2012

Its a synthetic blend...or in short an overpriced 10w30.

rixcidia · Jul 3, 2012

I actually return that one and bought this one instead

Rix

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Hjelle88 · Jul 3, 2012

For those who's car's have 125,000 or less, you might be interested in this: https://valvoline.promo.eprize.com/engineguarantee/

LOLZFWD · Jul 4, 2012

I run Schaeffers 5W-50 Race Oil. and this is why

Virgin Analysis of Phos/Zinc and moly - Bob Is The Oil Guy

Higher concentration of oil additives that you WANT, less of the crap you don't want. 5W winter, 50 weight summer, dry starts are no longer, plus my head makes less noise. Also for BB turbos, it made my cast wheel BB30r spool at 4500 rpm. I was hitting full @~4750-4800rpm before I switched.

fourgsixthree33 · Jul 4, 2012

I live in Pennsylvania. Trying to determine what oil to get this week. I have a stock rebuilt 2g 7 bolt with less than 7k on the motor. Still have the t25 but have a 14b that is going on when i get a jpipe. I also daily drive it.

What should i use in the summer?
What should i use in the winter?

boost97gst · Jul 4, 2012

These oil threads are

sometimes. I had a 98 rs i put over 225k on with FRAM filters(cheapest) and quaker state 10/30 non syth. It all depends on how you drive a vehicle.
Ive never ran a drop of synth in any of my sportbikes and have had excellent result

Although, since ive got my gst and dumped soooo much time and money into it, i do use much better oil and high quality filters. It may not matter, but i run this car pretty hard, i didnt spend 11k on it to baby it. Then again, if i drove it like my old 420a, id prob use quaker state again LOL

, i have proven its good oil. Btw, that 420a is still running, i see it around in highland down the road every now and then. Probably has close to 300k on it now.

FWIW, if you have to have the most expensive, exotic oil you can find, my machinist recommends brad penn

dewoof01 · Jul 4, 2012

rixcidia said:
I actually return that one and bought this one instead

Rix
You must be logged in to view this image or video.

I used to use that in my truck. just recently switched to amsoil which i have used in my other vehices. castrol edge has been a great oil for me, no complaints. did 10k before each oil change in my dodge ram and never had thick gunky oil. good stuff but amsoil IMO is the best.

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Which / What Oil Should I Use? [Merged]

JusMX141

1990gsxboosted

numbertwelve

t-rexn8

white92talontsi

red_devil

brian102

volcomsnow245

tarheels23

Lizardman

razordsm413

raiderrodney

re-rx7

PerfectStorm

PerfectStorm

lbgbandit

Calan

rixcidia

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red_devil

rixcidia

Hjelle88

LOLZFWD

fourgsixthree33

boost97gst

dewoof01

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