Anybody use Castrol GTX motor oil?

Breakout · October 11th, 2009, 11:33 AM

I've been using Castrol GTX oil in my car for about 20,000 miles. Everything I hear is great about it. What oil do you guys feel gives the best bang for the buck? Castrol GTX says it's additives reduce engine wear, just like synthetics do. Thoughts?

ReverendDexter · October 11th, 2009, 11:52 AM

It's what I use in the engines I care about, but don't need Mobil 1.

StangGTR07 · October 11th, 2009, 12:35 PM

I use Castrol GTX in my truck and 87 MCSS. Castrol Syntec for the Mustang. We only use GTX at work for everything except for the newer vehicles that came with Mobil 1

Luis_GT · October 12th, 2009, 07:53 AM

never tried Castrol... but then again, my car asks for full synthetic...

Breakout · October 12th, 2009, 07:56 AM

Originally Posted by Luis_GT

never tried Castrol... but then again, my car asks for full synthetic...

castrol GTX isn't synthetic, but heard it's just as good as synthetics. I'm contemplating switching to mobil 1 synthetic...just curious as to everyone's opinions.

Serlin · October 12th, 2009, 08:24 AM

Regular motor oil breaks down much sooner than synthetic.

There are tons of independent studies that show that synthetic oil does not breakdown for upwards of 20k miles..

I use Mobil 1 in all my cars simply for the fact that I can go 7-9k miles between changes.

Dodge Viper, Corvettes, ALL Porsches and many others recommend Synthetic oil and thats what they come with.

Thats good enough for me.

That being said, years ago, I used to use GTX. Never had any issues with it.

dannyboy281 · October 13th, 2009, 03:33 AM

i know my dad uses castrol gtx for his work trucks and they are used everyday around the city with no problems.... he uses mobil 1 clean 5000 or 7500 on his work/personal truck and its also great.... i used to use castrol syntec full synthetic on the mustang and on my previous car which was a 3000gt but recently changed to mobile 1 full synthetic im liking.... it not sure if i can say its really all that better than the syntec because they both hold up great but i hear better things about mobile 1 and decided to switch

ReverendDexter · October 13th, 2009, 09:17 AM

If you're seriously interested in oil comparisons, there is no better source of information than BobIsTheOilGuy.

October 11th, 2009, 11:33 AM	#1
Breakout Tree Fiddy Z 2006 Nissan 350Z Join Date: Dec 2006 Location: Central Florida Posts: 2,018 iTrader: 0 reviews	Anybody use Castrol GTX motor oil? I've been using Castrol GTX oil in my car for about 20,000 miles. Everything I hear is great about it. What oil do you guys feel gives the best bang for the buck? Castrol GTX says it's additives reduce engine wear, just like synthetics do. Thoughts?

October 11th, 2009, 11:52 AM	#2
ReverendDexter Priest of the Car Gods Clapped-out '90 GT 'vert ~5.5 seconds off TTOD :( Join Date: Jan 2007 Location: Rohnert Park, CA Posts: 13,808 iTrader: 0 reviews	It's what I use in the engines I care about, but don't need Mobil 1. __________________ O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

October 11th, 2009, 12:35 PM	#3
StangGTR07 What's this Photoshop? 2007 Mustang GT 5 speed Join Date: May 2009 Location: Alabama Posts: 2,248 iTrader: 0 reviews	I use Castrol GTX in my truck and 87 MCSS. Castrol Syntec for the Mustang. We only use GTX at work for everything except for the newer vehicles that came with Mobil 1 __________________

October 12th, 2009, 08:24 AM	#6
Serlin June 2010 ROTM 2000 Join Date: May 2008 Location: Ft. Lauderdale, FL Posts: 1,539 iTrader: 2 reviews	Regular motor oil breaks down much sooner than synthetic. There are tons of independent studies that show that synthetic oil does not breakdown for upwards of 20k miles.. I use Mobil 1 in all my cars simply for the fact that I can go 7-9k miles between changes. Dodge Viper, Corvettes, ALL Porsches and many others recommend Synthetic oil and thats what they come with. Thats good enough for me. That being said, years ago, I used to use GTX. Never had any issues with it. __________________ HPDE Instructor PCA, HOD, Track Guys, ERME www.RaceCarTowHooks.com My Track Videos http://www.youtube.com/user/Msirlin My Garage page: http://www.moddedmustangs.com/forums...-member-17090/

October 13th, 2009, 03:33 AM	#7
dannyboy281 MM Fanatic 2003 Azure Blue Mach 1 5,000 miles on the ODO Join Date: Mar 2009 Location: El Paso, Tx Posts: 4,912 iTrader: 0 reviews	i know my dad uses castrol gtx for his work trucks and they are used everyday around the city with no problems.... he uses mobil 1 clean 5000 or 7500 on his work/personal truck and its also great.... i used to use castrol syntec full synthetic on the mustang and on my previous car which was a 3000gt but recently changed to mobile 1 full synthetic im liking.... it not sure if i can say its really all that better than the syntec because they both hold up great but i hear better things about mobile 1 and decided to switch __________________ 2003 Azure Blue Mach 1 MGW, MAC Offroad X, Flowmaster Original 40's, Maganaflow 3.5" Tips, Anthracite 18x9's & 18x10's FR 500's wrapped with Nitto 555's, Eibach Pro Kit,

October 12th, 2009, 07:53 AM	#4
Luis_GT Banned 2002 BMW 530i don't know and don't care Join Date: Mar 2007 Posts: 5,180 iTrader: 0 reviews	never tried Castrol... but then again, my car asks for full synthetic...

October 13th, 2009, 09:17 AM	#8
ReverendDexter Priest of the Car Gods Clapped-out '90 GT 'vert ~5.5 seconds off TTOD :( Join Date: Jan 2007 Location: Rohnert Park, CA Posts: 13,808 iTrader: 0 reviews	If you're seriously interested in oil comparisons, there is no better source of information than BobIsTheOilGuy. __________________ O o /¯/______________________ \|BLAAAAAAAAAAAAAAAAAAAAAAAAARGH!!! \_\

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