Is it ok to mix this 2 type of Engine Oil?
I have always used Castrol GTX 5w20 but now they have 'With Trishield Technology'.
I am about to get my oil changed and I have Three bottles of Trishielf and One regular. Will it be ok to mix this together? Is the Trishield better? |
I will be honest with you. Everyone always tell me that oil is oil. I disagree because it goes deeper than that, but as long as you have the same type of oil, ie. synthetic, blend, or conventional, you should be fine, just keep an eye on it is all.
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Originally Posted by clutch811
(Post 249099)
I will be honest with you. Everyone always tell me that oil is oil. I disagree because it goes deeper than that, but as long as you have the same type of oil, ie. synthetic, blend, or conventional, you should be fine, just keep an eye on it is all.
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It will say on the bottle which type of oil you are buying. If you mix the regular with the trishield you will be fine. I honestly dont see there being a problem.
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Originally Posted by clutch811
(Post 249123)
It will say on the bottle which type of oil you are buying. If you mix the regular with the trishield you will be fine. I honestly dont see there being a problem.
I am reaching 90K so should I be using the high mileage type? |
engine oil is not like transmission fluid
engine oils can be mixed, synthetic conventional high mileage. no harm will be done service centers recommend high mileage oil for cars over 75,000 miles i run mobil 1 high mileage synthetic 5w-30 |
I heard you cannot mix the regular oil with Synthetic though.
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My car is reaching 90K. Should I be using the high mileage that is for over 75K already? Any advantage?
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it won't hurt a thing. I always use a qt. of Lucas oil stabilizer with all my oil changes. Or I will add a qt. of my diesel tractor oil(shell rotella oil). Why I do that is for dry starts keeps the cyl walls, pistons and pistons rings from ware when you start your engine. The oil is thinker and won’t all settle down to the oil pan. Keeps a nice coat on the cyl calls and the bottom of the pistons. But if you have a turbo DON'T DO THIS you WILL lock up your turbo (guess how I know)
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Originally Posted by Accord Owner
(Post 249784)
My car is reaching 90K. Should I be using the high mileage that is for over 75K already? Any advantage?
yes it will help. High millage oil OR Lucas oil stabilizer will help with dry starts. The high millage oil has something like the Lucas oil stabilizer but not as much. Also with high millage I believe it uses a higher concentrate of detergent in the oil to help keep you engines insides clean since it has high millage. (but don't hold me to that’s one) |
OP: yes you can mix oils. That's how they get "blends"...synth + conventional. As far as high mileage or not, do you have any leaks right now? HM oils have seal swelling agents in their add packs that help reduce leaks. My '02 Accord has 133k and no leaks so I use conv oil. No problems.
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I've mixed oils occasionally, don't make a constant habit of it, but never had problems. Castrol is probably just changing their labeling or marketing etc. I've mixed synthetic with petroleum-base oil too.
I used regular (not high-milage) oil for well over 100k miles on several different cars. For 220k miles on an 89 Saab. I wouldn't use "hi-mile" oil unless there's a specific issue you're dealing with like leaking seals. |
Originally Posted by bigdawg74
(Post 249921)
OP: yes you can mix oils. That's how they get "blends"...synth + conventional. As far as high mileage or not, do you have any leaks right now? HM oils have seal swelling agents in their add packs that help reduce leaks. My '02 Accord has 133k and no leaks so I use conv oil. No problems.
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Is Castrol GTX the best oil?
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I've used the cheapest oil available every time I change the oil. Our wagon now has 286k miles and still doesn't burn oil, leaks a little. Use whatever oil of the right weight you can find, check it often and change it when its called for or a little sooner (3k-5k miles) and your Accord will last a long time.
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Originally Posted by Accord Owner
(Post 262190)
Is Castrol GTX the best oil?
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I've been using Castrol GTX in the non-turbo cars (various Hondas) for many years.
My kids' 2007 Civics have the oil-life monitor, and according to oil-analysis it's been OK when changed at 10% per the monitor. That worked out to about 7,000 miles for their driving habits. We had a 2003 Accord (4-cyl) and I was always afraid to go 10,000 miles on the oil, but that's what the owner's manual said. I usually went about 7k. |
Originally Posted by Accord Owner
(Post 249777)
I heard you cannot mix the regular oil with Synthetic though.
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