5w-40 oil in the ZL1 - Page 4

getchapull · 05-08-2021, 01:11 PM

Just finished putting in the RP 5W-30 HPS oil in my car and wow what a difference! The lifters are sooooo much quieter and the RPMs are steady and not bouncing around any more at idle. Prolly gained a few horses and torques!

I will monitor the engine to make sure it doesn't blow up because it's not a Dexos labeled oil. Wish me luck!

CanadianVetZL1 · 05-08-2021, 01:24 PM

Just wondering why you would go against the recommended oil spec?

AZ_1LE · 05-08-2021, 03:24 PM

Just changed the oil in my ZLE and put in Motul's 5w-40 dexos2 oil. "Only" $37 for a 5 quart jug and free shipping, had it in 2 days. https://www.amazon.com/dp/B00V5ERDOQ...roduct_details

SFV1LE · 05-08-2021, 04:05 PM

Quote:

Originally Posted by getchapull

Just finished putting in the RP 5W-30 HPS oil in my car and wow what a difference! The lifters are sooooo much quieter and the RPMs are steady and not bouncing around any more at idle. Prolly gained a few horses and torques!

I will monitor the engine to make sure it doesn't blow up because it's not a Dexos labeled oil. Wish me luck!

If your RPMs were bouncing around, you may have had another problem rather than M1 vs. RP. My RPMs on M1, Motul and Valvoline have never bounced around even slightly.

Has anybody else with a non-modded/un-tuned car had any issues with unstable RPMs?

Crawco · 05-09-2021, 01:17 AM

Quote:

Originally Posted by getchapull

Thinking about switching to Royal Purple SAE 5W-40 High Performance Synthetic Motor Oil for my next oil change. They have a 0w-40 but it does not have the Synerlec additive. The 5W-40 does. They also have the HPS oil in 10w-40 with the zinc / phosphorus package.

Pros / cons?

https://royalpurpledirect.com/royal-...tic-motor-oil/

I am switching to Amsoil. I have been using Royal Purple for over a decade. Amsoil kick RP's ass in the Youtube channel Project Farm. Very hard to argue for RP after seeing that video.

Warrior102 · 05-09-2021, 05:52 AM

Mobil1 European formula 0W-40 is a very robust oil with high amounts of phosphorus and zinc, GM's Dexos specs are not to protect you but them from the fed mandated extended emissions warranty requirements.

Buckwheat · 05-09-2021, 07:49 AM

I live in the Deep South Swamplands of Louisiana
I ran 5w50 AMSOIL in my Demon from day 1 year round.
I plan on changing my ZL1 oil next week car has 9 miles on it.
5w50 AMSOIL is my choice.
Oil is a choice for each owner.
AMSOIL Hands Down a superior oil
I am sticking with the AC Delco Oil Filter.
I changed my rear end oil before I drove this car. It had 4 miles on it when it arrived.
It now has 9 miles on it and changing the oil.
I don’t trust factory line workers.
FYI my 2018 SRT Demon was 2oz low on rear oil when I changed it !
It only had 6 miles on it so go figure.

getchapull · 05-09-2021, 11:21 AM

Quote:

Originally Posted by Warrior102

GM's Dexos specs are not to protect you but them from the fed mandated extended emissions warranty requirements.

Correct!

JSH · 05-09-2021, 11:23 AM

Mobil 1 ESP 0W-40 dexos 2,

ZX-10R · 05-09-2021, 11:51 AM

Quote:

Originally Posted by getchapull

Just finished putting in the RP 5W-30 HPS oil in my car and wow what a difference! The lifters are sooooo much quieter and the RPMs are steady and not bouncing around any more at idle. Prolly gained a few horses and torques!

Placebo effect nonsense. Slightly higher cold viscosity may have quieted the valvetrain slightly

RP consistently ranks near the bottom of standardized testing and UOA comparisons. Oil is almost a religion for many people, they don't care about actual facts.

Castrol Edge, Amsoil, Mobil 1 EP (not standard) are all *proven* - not speculated - to be good. For the money it's hard to beat Castrol

Dexos is more of a mark-up/marketing gimmick and has little to do with real world performance. The drones just repeat what they are told. All the oils mentioned above meet or exceed Euro standards

Vigilante375 · 05-09-2021, 01:57 PM

Quote:

Originally Posted by SFV1LE

If your RPMs were bouncing around, you may have had another problem rather than M1 vs. RP. My RPMs on M1, Motul and Valvoline have never bounced around even slightly.

Has anybody else with a non-modded/un-tuned car had any issues with unstable RPMs?

100% stock here and no RPM bouncing or rough idle. 24k miles and counting. Car is not babied. All running on the factory recommended oil.

Marozl1LE · 12-16-2023, 08:23 AM

Also after 1 1/2 year driving and make over 4300 miles also 7000 km I would now change my oil from mobil1 5w 30 to Ravenol 5w 40
Car use a lot oil 4.2 quart I don't know If my engine is still in a good condition but it has only 9000 miles on the speedo.

But it runs pretty well and it has full bolt on.

arpad_m · 12-16-2023, 09:34 AM

Oh, a(nother) resurrected oil thread, CHALLENGE ACCEPTED

Marozl1LE, my car has a built LT1 engine with more power than yours, and it consumes almost zero oil between oil changes, short of the few ounces that ends up in the catch can. Losing 4.2 quarts out of 10 in just 4300 miles, practically 1 quart per 1000 miles is a metric ton of blowby. Are you the original owner who did the initial break-in?

Marozl1LE · 12-16-2023, 10:23 AM

Quote:

Originally Posted by arpad_m

Oh, a(nother) resurrected oil thread, CHALLENGE ACCEPTED

Marozl1LE, my car has a built LT1 engine with more power than yours, and it consumes almost zero oil between oil changes, short of the few ounces that ends up in the catch can. Losing 4.2 quarts out of 10 in just 4300 miles, practically 1 quart per 1000 miles is a metric ton of blowby. Are you the original owner who did the initial break-in?

No the car is a us export im from Germany I don't know about the previous owner or break in....

But I know a lot ppl here and in another country's with stock lt4 has a lot of them oil consumption with low mileage and with and without any mods watch corvette or cts-v forum or here for me is that Okey with 0.5 liter consumption at 1000km for this engine with 800hp and with hard driving.
I think newer lt4 or maybe engine's are in better condition has no problem with oil consumption.
I try now 5w 40 and watch out the consumption if this changes or not and if the oil consumption goes higher I know them if i have a problem.

My micky mouse catch can is empty after 5000 km driving also I think I don't has so much blow by.
I think the oil burning is from direct injection and corked oil rings.

I have the car now about 2 years it's still running pretty good but we will see ...

05-08-2021, 01:24 PM	#44
CanadianVetZL1 Drives: 2021 Chevrolet Camaro ZL1 Join Date: Apr 2021 Location: Nova Scotia Posts: 74 View My Garage	Just wondering why you would go against the recommended oil spec? __________________ 2021 Camaro ZL1 ADM S/C Expansion Tank Dual Aeroforce gauges Eibach Pro Lowering Kit Oracle Side markers (Paint matched) Rear window "wind screen" Xpel Paint Protection Ceramic Pro Coating

05-08-2021, 03:24 PM	#45
AZ_1LE Drives: 2019 ZL1 1LE Join Date: Feb 2017 Location: Gilbert, AZ Posts: 648	Just changed the oil in my ZLE and put in Motul's 5w-40 dexos2 oil. "Only" $37 for a 5 quart jug and free shipping, had it in 2 days. https://www.amazon.com/dp/B00V5ERDOQ...roduct_details __________________ Old: 2017 SS 1LE Old: 2017 ZL1 Current: 2019 ZL1 1LE

05-09-2021, 11:23 AM	#51
JSH Drives: '20 ZLE Join Date: Jun 2020 Location: Mile High Posts: 3,594	Mobil 1 ESP 0W-40 dexos 2, __________________ '20 ZL1 1LE A10. LME 390, E2650, FBO, 100 oct. Not a DD.

12-16-2023, 09:34 AM	#55
arpad_m Drives: 2018 Camaro 2SS A8 Join Date: Jul 2017 Location: East Tennessee Posts: 11,696 View My Garage	Oh, a(nother) resurrected oil thread, CHALLENGE ACCEPTED Marozl1LE, my car has a built LT1 engine with more power than yours, and it consumes almost zero oil between oil changes, short of the few ounces that ends up in the catch can. Losing 4.2 quarts out of 10 in just 4300 miles, practically 1 quart per 1000 miles is a metric ton of blowby. Are you the original owner who did the initial break-in? __________________ 2018 Camaro 2SS — G7E MX0 NPP F55 IO6 735 rwhp \| 665 rwtq Magnuson TVS 2300 80mm pulley \| Kooks 1 7/8" LT headers \| JRE smooth idle terminator cam \| LT4 FS & injectors \| TSP forged pistons & rods JMS PowerMAX \| DSX flex fuel kit \| Roto-Fab CAI \| Soler 95mm LT5 TB \| 1LE wheels \| 1LE brakes \| BMR rear cradle lockout \| JRE custom tune 1100 - 1/30/18 \| 2000 - 1/31/18 3000 - 2/06/18 TPW 2/26/18 3400 - 2/19/18 \| 3800 - 2/26/18 4300 - 2/27/18 \| 4B00 - 3/01/18 4200 - 3/05/18 \| 4800 - 3/14/18 5000 - 3/16/18 \| 6000 - 3/19/18

05-08-2021, 01:11 PM	#43
getchapull TEXIT Drives: 2019 ZL1 M6 Join Date: Aug 2018 Location: Republic of Texas Posts: 161	Just finished putting in the RP 5W-30 HPS oil in my car and wow what a difference! The lifters are sooooo much quieter and the RPMs are steady and not bouncing around any more at idle. Prolly gained a few horses and torques! I will monitor the engine to make sure it doesn't blow up because it's not a Dexos labeled oil. Wish me luck!

05-09-2021, 05:52 AM	#48
Warrior102 Drives: 2018 2SS 1LE Black Join Date: Aug 2018 Location: Cape Cod Posts: 640	Mobil1 European formula 0W-40 is a very robust oil with high amounts of phosphorus and zinc, GM's Dexos specs are not to protect you but them from the fed mandated extended emissions warranty requirements.

05-09-2021, 07:49 AM	#49
Buckwheat Account Suspended Drives: 2021 Camaro ZL1 Join Date: Jan 2010 Location: Swamplands Of Louisiana Posts: 106	I live in the Deep South Swamplands of Louisiana I ran 5w50 AMSOIL in my Demon from day 1 year round. I plan on changing my ZL1 oil next week car has 9 miles on it. 5w50 AMSOIL is my choice. Oil is a choice for each owner. AMSOIL Hands Down a superior oil I am sticking with the AC Delco Oil Filter. I changed my rear end oil before I drove this car. It had 4 miles on it when it arrived. It now has 9 miles on it and changing the oil. I don’t trust factory line workers. FYI my 2018 SRT Demon was 2oz low on rear oil when I changed it ! It only had 6 miles on it so go figure.

12-16-2023, 08:23 AM	#54
Marozl1LE Drives: Camaro gen 6 zl1 1le Join Date: Jun 2022 Location: Germany Posts: 74	Also after 1 1/2 year driving and make over 4300 miles also 7000 km I would now change my oil from mobil1 5w 30 to Ravenol 5w 40 Car use a lot oil 4.2 quart I don't know If my engine is still in a good condition but it has only 9000 miles on the speedo. But it runs pretty well and it has full bolt on.

User Name		Remember Me?
Password