Brand/Type of Motor Oil to Use...

[95-GAGT]

I used Valvoline Durablend (synthetic blend) 5w30. I used to use Mobil 1 until I got sick of spending $30 on an oil change. The Durablend that I use, as a blend, is less than half the price of Mobil 1 - its only a little more than conventional - so I will probably stick with it.

[Fat Matt]

As I said.......even though it's only a little more cost than a normal fossil oil, synthetic blends are just NOT worth the price hike. They just don't perform any better.......

You also sound as if you would be better off with a normal fossil oil.

[Beretta]

For more information, check out the oil fanatics forum:

http://theoildrop.server101.com

[stevey_frac]

In everything that i have read, it seems as though Mobil 1 is THE top full synthetic oil, partial sythetics are fine, but not much better than crude oil, synthetic oils due not cause oil leaks, but they might point out leaks to you by removing crude oil sludge from cracks in gaskets, and syntec is stupid.
and a q? why would any grand am use heavier than 10w-30 oil? the thinner oil will provide much better start up and still provide the same protection! i've even read of one case where the thicker oil CAUSED damage because it could not properly penetrate between engine internals!

[RavynX]

Originally posted by stevey_frac
and a q? why would any grand am use heavier than 10w-30 oil? the thinner oil will provide much better start up and still provide the same protection! i've even read of one case where the thicker oil CAUSED damage because it could not properly penetrate between engine internals!

Supposedly 10w-30 is used in a 5w-30 engine when the mileage is high, which is when seals and stuff need to be leak-proofed after wear and tear; or so I've heard.

From Castrol's Site (the GTX HileMileage Oil Which I Use):

-Contains seal conditioners that provide added level of protection and help reduce leakage.

-Reduced deposit formation to minimize compression loss and maximize engine performance.

Not sure about the "heavier than 10w-30."

[darkfox]

I don't know about that. When your engine's cold, the oil's not going to flow as freely as it would if it where 5 weight. I would stick with 5w30. They both should perform the same at normal operating temp.

[achievasc92]

I use Quaker state in my 3300 and Castrol GTX in my 3100,
But I'm thinking about switching to Canola 10WChicken :goob:

[grandravermc]

Anybody know anything about MOBIL ONE brand's "HIGH MILAGE semi-synthetic" Oil? It's the ONLY high milage oil I've ever seen that's a Synthetic Blend. Also>>MOBIL ONE makes it! (so it HAS to be good)

What about when engines have 80 or 100k on them? Do you (anyone? or Fat Matt....the expert! haha) think FULL SYNTHETIC is too thin to be considered the BEST choice for them?
I put the 10W-30 Syn-Blend HIGH MILAGE Mobil One in my Quad 4 High Ouput (which is SUPPOSED to have 5W-30 in it) Is this OK?

What's the BEST Oil for say RavynX's 2.4 with 108k AND my 3100 with 108K? Same Oil for a Twin Cam AND 3100 with OVER 100k?

How about the 2.3 HO engines? My '94 only has 59k on it? Do you think FULL SYNTHETIC (Mobil One) or a BLEND or what?

and what's best for the HO that has over 100k?

thanks for the GREAT answers before Matt...

& good thread Chris! :D

[RavynX]

Originally posted by grandravermc
Anybody know anything about MOBIL ONE brand's "HIGH MILAGE semi-synthetic" Oil? It's the ONLY high milage oil I've ever seen that's a Synthetic Blend. Also>>MOBIL ONE makes it! (so it HAS to be good)

What about when engines have 80 or 100k on them? Do you (anyone? or Fat Matt....the expert! haha) think FULL SYNTHETIC is too thin to be considered the BEST choice for them?
I put the 10W-30 Syn-Blend HIGH MILAGE Mobil One in my Quad 4 High Ouput (which is SUPPOSED to have 5W-30 in it) Is this OK?

What's the BEST Oil for say RavynX's 2.4 with 108k AND my 3100 with 108K? Same Oil for a Twin Cam AND 3100 with OVER 100k?

& good thread Chris! :D

Hey there, my car is at 116,500 miles now and I've been using the Castrol High Mileage stuff for a good while. My oil leak has seemed to stop some how, they say the oil is supposed to help seep into the dry seals and small cracks to help prevent leaks. I truly should get the leak checked out, but this is a good alternative for now.

I'm still unsure on the synthetic blends, I agree w/ Matt that you should either go full synthetic or just regular oil and not inbetween unless you're converting between the two; then one should be a blend to help the changeover.

Oh, and just b/c Mobile 1 makes it doesn't automatically mean it's good since they might just be making something for the competition out there.

Your best bet is to keep researching like this on google and other forums as well.

I hope that helped. =)

[BobGAGT]

A synthetic is similar to a high mileage oil... thats basically what high mileage oil is. The first oil change in my ga was to castrol syntec (synthetic blend) and now its Mobil 1 with an oversized filter.

[grandravermc]

Yeah...thanks for the nice reply my friends....

That IS true about Mobil One's HIGH MILAGE blend.....I just got and thought it was cool b/c NO other brand OFFERS a High Milage Oil Syn Blend or Full Syn OIL.....JUST reg oil.

and Bob...I'm pretty sure that the HIGH MILAGE Oil is far from being as good as Syntec or Mobile 1. That oil that is for vehicles with over 75k (HIGH MILAGE oil) is REG, NOT synthetic at all man, and EVEN thicker with MANY many mores additives in it than REG oil.

That's GREAT to do what you (and I) did.....running FULL SYNTHECTIC OIL as soon as you got the car (Even though ALL Syn Oils are NOT created equally, Syntec is the 2nd best, and MOBIL 1 IS the best>>that's why you MUST use it in your Corvette or you'll break your lease)

How many mile's are on your GA Bob? If I EVER get a new car, I wouldn't even THINK about running REG shitty oil after a couple thousands miles. (You SHOULD run REG junk oil on a BRAND NEW engine for 2-3 thousand so it 'breaks in' properly)


Chris..that's cool that that GTX High Milage oil you're running helped out the HOT LIL 'Twin Cam' you got in the WHITE GT.
If you DO replace your gaskets, your engine should be good for another 75k easy.....

[RavynX]

Originally posted by grandravermc
Yeah...thanks for the nice reply my friends....

If you DO replace your gaskets, your engine should be good for another 75k easy.....

Hehe, yeah the engine may be good but the rest of the car is falling apart as is. That's why I'm selling in within the next few months and buying a new Celica GT or GTS. >=)

I'm going to repost it in the classifieds section again soon so keep your eyes open if you or someone you know is interested.

[hotrodpaully]

I personally like Valvoline i think it better than mobil one but that your choice and it fine One thing for sure is you must stop useing Quaker Mistake that one of the worst oils on the market also i agree that use of additives in oil are very bad for it i know what they claim but if you ever tear down a motor that runs that stuff you understand

[RavynX]

Originally posted by hotrodpaully
I personally like Valvoline i think it better than mobil one but that your choice and it fine One thing for sure is you must stop useing Quaker Mistake that one of the worst oils on the market also i agree that use of additives in oil are very bad for it i know what they claim but if you ever tear down a motor that runs that stuff you understand

Look halfway down the thread. I use Castrol GTX High Mileage. Gotta a photo attached too.

BTW, why do you say QM is the worst oil on the market? Have you looked at test results or is that just an opinion?

[achievasc92]

Quaker State is fine to use now, all conventional oils are basically the same now. Back in the day Quaker State apparently had a relatively high concentration of paraffins or something along those lines that produced a build up over time. But since most oil companies are owned by each other nowadays, there really isn't much difference with convention oils.