Recent Topics
Anyone go to the Formula 1 US Grand Prix at cota?
by gatorfast
03/22/18 10:15 AM
06 Mustang with the 2 piece spark plugs ugggg
by gmh101357
03/22/18 09:55 AM
Putting a Toyota filter on a Ford?
by mrdctaylor
03/22/18 09:30 AM
Latest And Greatest For Oil Stain Removal
by Propflux01
03/22/18 08:56 AM
repair or replace time?
by joaks
03/22/18 08:39 AM
15 escape tranny mtc question
by alphasparky353
03/22/18 08:23 AM
Funny pic
by Chris142
03/22/18 08:23 AM
Ebay Coupons
by krismoriah72
03/22/18 08:17 AM
Mitsubishi Outlander 2.4
by mobilaltima
03/22/18 07:59 AM
cvt transmission oil
by ernied
03/22/18 07:54 AM
Spring in New York
by michaelluscher
03/22/18 07:48 AM
Metal Cutting Wheels
by krismoriah72
03/22/18 07:44 AM
What Year Did you Start Using Synthetic Motor Oil?
by Speak2Mountain
03/22/18 07:25 AM
Mobil 1 differential fluid?
by lawnguy
03/22/18 07:03 AM
New Tractor Fluids sub-forum
by Shannow
03/22/18 06:29 AM
So what exactly is, and what oils
by Shannow
03/22/18 06:22 AM
Castrol 0w 40
03/22/18 05:50 AM
3D holographic magnifying glass...
by Shannow
03/22/18 04:36 AM
Tesla getting in to ride sharing
by Shannow
03/22/18 01:55 AM
Brake hub resurfacing kit
by pda1122
03/21/18 11:46 PM
Newest Members
jongpoole, MCM, zhang, sshuangyc, adubg
64528 Registered Users
Who's Online
115 registered (Alfred_B, 28oz, 1JZ_E46, Andrei, adubg, 69Torino, 9 invisible), 1582 Guests and 102 Spiders online.
Key: Admin, Global Mod, Mod
Forum Stats
64528 Members
68 Forums
280250 Topics
4678042 Posts

Max Online: 3590 @ 01/24/17 08:07 PM
Donate to BITOG
Topic Options
#4560241 - 10/31/17 01:30 PM Castrol GTX High Mileage 10w-30
CamBurt33 Offline

Registered: 10/22/17
Posts: 3
Loc: Dayton, TN
Just curious. What is everyone's opinion on Castrol GTX High Mileage? I'm going to run it in my 1994 Ranger 4.0 and looking to see what kind of experience people have had with it. Will it really condition seals and prevent/stop oil leaks? If not, is there a HM oil that will do this?


Edited by CamBurt33 (10/31/17 01:43 PM)

#4560245 - 10/31/17 01:39 PM Re: Castro GTX High Mileage 10w-30 [Re: CamBurt33]
Merkava_4 Offline

Registered: 01/30/07
Posts: 17501
Loc: Clovis, CA
HM oil has a special 'lotion' for rubber seals to keep them from drying out.

When they dry out, they shrink. When they shrink, you get leaks.

#4560253 - 10/31/17 01:49 PM Re: Castro GTX High Mileage 10w-30 [Re: CamBurt33]
HoosierJeeper Offline

Registered: 11/23/16
Posts: 1217
Loc: WI
I ran it in my Liberty for 2 OCIs I think (maybe a third, don't remember). It's an oil leaker. I've also ran Maxlife in it. With the Castrol, the oil level wouldn't move for about 1000 miles into the OCI, then it would leak again. Maxlife I'm not even sure it's doing anything, so Castrol in my experience wins against Maxlife.

In my 96 Cherokee, I ran Maxlife in it when I got it and still got oil drips after a few changes. Started running Pennzoil HM in it and the drips stopped, at least enough to not hit the ground. I probably have to add about a quart every 2-3k for it, which I'm happy with.

One that I don't know about is Quaker State Defy. I'm guessing as a SOPUS oil it's like Pennzoil HM but I don't know.
15 Jeep KL Limited V6: Formula Shell 5W20
07 LR3 SE V8: Maxlife 5W30
05 Jeep KJ Limited: PHM 5W30
96 Jeep XJ Country: STP HM 5W30 (winter)

#4560263 - 10/31/17 02:12 PM Re: Castrol GTX High Mileage 10w-30 [Re: CamBurt33]
Bgallagher Offline

Registered: 04/17/12
Posts: 3159
Loc: Boston, MA
it will help bur short of fixing the issue you might never "fix" a leak with oil. It will help though.
2017 Chevy Traverse - 28k - Delco Dexos 1 and PF63
2014 Chevy Equinox - 22k - Delco Dexos 1 and PF457G
2015 GMC Terrain - 22k- Delco Dexos 1 and PF457G

#4560535 - 10/31/17 06:58 PM Re: Castrol GTX High Mileage 10w-30 [Re: CamBurt33]
KCJeep Offline

Registered: 06/30/11
Posts: 6957
Loc: Mahzurrah!
It's good oil. I have run a lot of it and am still running it ( 3 years exclusively now ) in my son's 04 Concorde. It is still on the "thick for grade" like I prefer. Pennzoil HM is also very good and is also thick for grade.
04 Jeep Grand Cherokee 4.0 147k - GTX 5w30/10w40
09 Lincoln MKZ AWD 89k - Magnatec 5w30
12 KIA Sedona 83k - Edge 0w40
09 Ford Focus 127k - GTX UC 5w30