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Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? #5129596
06/09/19 07:02 PM
06/09/19 07:02 PM
Joined: Sep 2009
Posts: 155
California
Dwight_Frye Offline OP
Dwight_Frye  Offline OP

Joined: Sep 2009
Posts: 155
California
I want to drain the factory fill and change the filter on my new Mazda CX 5 with the 2.5 liter Turbo Skyactiv engine somewhere around the 1000 - 1200 mile mark and refill with a quality synthetic.
I think the Castrol Edge will be a good match for this engine. I have 3 quarts of Redline 5W-30 leftover from my supply for my previous Nissan 370Z that I would like to consume.

Any issues with mixing 3 quarts of the Redline and 2 of the Castrol Edge of the same viscosity and running until the next change and then refilling with Castrol Edge for the regular OCI's ? The dealer offered me a free oil & filter change at 7500 miles but I don't want to run that long on the factory fill and who knows what kind of bulk 5W-30 they will use for the free change.

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129620
06/09/19 07:16 PM
06/09/19 07:16 PM
Joined: Apr 2004
Posts: 915
Indiana
nascarnation Offline
nascarnation  Offline

Joined: Apr 2004
Posts: 915
Indiana
If you were in the Great Lakes region I'd say skip the oil change because Mazdas rust out long before the engine fails
But in California, perhaps a different story.

Last edited by nascarnation; 06/09/19 07:16 PM.
Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129640
06/09/19 07:40 PM
06/09/19 07:40 PM
Joined: Nov 2002
Posts: 31,402
NJ
buster Offline
buster  Offline

Joined: Nov 2002
Posts: 31,402
NJ
It's not ideal but can be done. I would only do it the one time.


2015 Mazda 3 2.0 - Mobil 1 EP 0w20
Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129647
06/09/19 07:52 PM
06/09/19 07:52 PM
Joined: Jul 2005
Posts: 11,765
Maricopa Arizona
dave1251 Offline
dave1251  Offline

Joined: Jul 2005
Posts: 11,765
Maricopa Arizona
It can be done. I don't see any advantages but nothing bad will happen.


make the inside of your engine oil cap white.
don't use.
Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129693
06/09/19 08:35 PM
06/09/19 08:35 PM
Joined: May 2019
Posts: 53
FL
Brojo Offline
Brojo  Offline

Joined: May 2019
Posts: 53
FL
“What are you running?”

Red Edge 5w30

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Brojo] #5129722
06/09/19 09:03 PM
06/09/19 09:03 PM
Joined: Dec 2006
Posts: 2,933
Columbus, Ohio
John_K Offline
John_K  Offline

Joined: Dec 2006
Posts: 2,933
Columbus, Ohio
Originally Posted by Brojo
“What are you running?”

Red Edge 5w30



I like Edgeline.


2009 Mercury Grand Marquis, 8 cyl auto, 91xxx miles, PU/Fram Ultra
2005 Hyundai Sonata, 4 cyl auto, 98xxx miles, Maxlife/OEM Filter
Current oil stash: 468 qts.


Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129802
06/09/19 10:20 PM
06/09/19 10:20 PM
Joined: Apr 2015
Posts: 503
Upper midwest
Mainia Offline
Mainia  Offline

Joined: Apr 2015
Posts: 503
Upper midwest
Wait till you get more miles on it, then do it...like 5,000 more.

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129810
06/09/19 10:33 PM
06/09/19 10:33 PM
Joined: Aug 2004
Posts: 2,380
5600 feet elevation, Arizona
double vanos Offline
double vanos  Offline

Joined: Aug 2004
Posts: 2,380
5600 feet elevation, Arizona
A Frankenbrew in a brand new car. One of the many reasons I like hanging out here. LOL


Sabine Schmitz is the Queen of the 'Ring; Svetlana Kapanina is the Queen of the SKIES...
Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129820
06/09/19 10:41 PM
06/09/19 10:41 PM
Joined: Mar 2006
Posts: 6,156
Buffalo, NY
Nickdfresh Offline
Nickdfresh  Offline

Joined: Mar 2006
Posts: 6,156
Buffalo, NY
You bought a new car, but are so cheap you won't bother to get matching oils? Really?

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129854
06/10/19 12:28 AM
06/10/19 12:28 AM
Joined: Feb 2014
Posts: 3,188
Yellowbrick Rd(KS)SemiRetired
Marco620 Offline
Marco620  Offline

Joined: Feb 2014
Posts: 3,188
Yellowbrick Rd(KS)SemiRetired
Wait a MINIMUM of 2000 miles or first oci before as to make sure break in is complete. Think on back of bottles they say to wait.


15' Civic 1.8 i-vtec 254,000 mi Redline 5/0w20, BP transmax cvt fluid & Archoil9100
Tornado Chaser Extraordinar!
Son of a Navy Corpsman. Support vets!


Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: double vanos] #5129880
06/10/19 02:38 AM
06/10/19 02:38 AM
Joined: May 2019
Posts: 717
WA
Mad_Hatter Offline
Mad_Hatter  Offline

Joined: May 2019
Posts: 717
WA
Originally Posted by double vanos
A Frankenbrew in a brand new car. One of the many reasons I like hanging out here. LOL


👍😂

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5129965
06/10/19 06:58 AM
06/10/19 06:58 AM
Joined: Aug 2017
Posts: 747
WY
sloinker Offline
sloinker  Offline

Joined: Aug 2017
Posts: 747
WY
Castroline, formulated in Cuba for the motoring enthusiast!

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5130001
06/10/19 08:04 AM
06/10/19 08:04 AM
Joined: Oct 2018
Posts: 71
Chennai TN India
SureshR Offline
SureshR  Offline

Joined: Oct 2018
Posts: 71
Chennai TN India
5w30 ACEA A5/B5 is what Fords ask for. If your Redline is a 5w30 A5/B5 it shouldn't matter all that much. Though draining a factory fill oil at 2000 miles .. well, I am sure the oil companies need to stay profitable.


2014 Ford Fiesta 1.5 TDCI (Mobil F1 5w30 A5/B5 Ford WSS-M2C-913D) | 2015 Mahindra Scorpio 2.2 mHawk (Amsoil CK4 Turbo Truck)
Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5130049
06/10/19 09:15 AM
06/10/19 09:15 AM
Joined: Aug 2011
Posts: 3,715
N.C.
gman2304 Offline
gman2304  Offline

Joined: Aug 2011
Posts: 3,715
N.C.
Buy 2 qts of Redline of the same flavor, change the oil, then you’ll have all Redline in the sump and not feel conflicted. Next oci go with the Castrol. Or ship the Redline to me....prepaid, and go with the Castrol at the first oci. Simple really. wink

Re: Any Issues Mixing Redline 5W-30 and Castrol Edge 5W-30 ? [Re: Dwight_Frye] #5130060
06/10/19 09:23 AM
06/10/19 09:23 AM
Joined: Dec 2004
Posts: 11,355
1/2 hr N.E. of Detroit
Triple_Se7en Offline
Triple_Se7en  Offline

Joined: Dec 2004
Posts: 11,355
1/2 hr N.E. of Detroit
Originally Posted by Dwight_Frye
I want to drain the factory fill and change the filter on my new Mazda CX 5 with the 2.5 liter Turbo Skyactiv engine somewhere around the 1000 - 1200 mile mark and refill with a quality synthetic.
I think the Castrol Edge will be a good match for this engine. I have 3 quarts of Redline 5W-30 leftover from my supply for my previous Nissan 370Z that I would like to consume.



Use one quart of Red Line for each of the next three OCIs. Overstock problem now solved and the new Mazda gets mostly-all correctly spec'd oil each OCI.


19 Hyundai SantaFe 2.4GDI Castrol Edge 5w30 / NAPA Mann-Hummel filter / 6oz Liqui-Moly Treatment
04 Colorado 3.5 Castrol Edge 0W40 Euro & K&N filter
03 Malibu 3.1 QS / Valv Syn 5w30 mix Fram EG filter
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