switching back to natural oil?

[fnkngrv]

Originally Posted by bronsin

If you are thinking you will get better gas mileage using synth think again. I drove 5200 miles to AK from NJ on regular motor oil and returned the same way using synthetic. There was no difference in gas mileage over 5200 miles.

As racerb stated you should do an engine flush between the two types of oils to ensure that you have removed all of the contaminants. You should have seen the amount of garbage that came out with the flush of the motor that I just put into my car and that engine had only 23k on it with conventional oil. I totally believe that you didn't notice an improvement in FE on your trip. There is a reason why AMSOIL for example makes the claim that over time you should notice an improvement and not over the short haul.

[daf62757]

Originally Posted by bronsin

If you are thinking you will get better gas mileage using synth think again. I drove 5200 miles to AK from NJ on regular motor oil and returned the same way using synthetic. There was no difference in gas mileage over 5200 miles.

Also you will void your warranty if you dont change your oil according to the owners manual.

Also see below.

Nice to know that you are the center of the universe. Did you ever stop to ponder....and I am sure you haven't....that your test was not a true evaluation? And all of the people on this forum who do use synthetic oil and have gotten better gas mileage and longer protection might be right?

So some advice. You can qualify you opinion as just that.....in your opinion. When you come out and make these claims that synthetic oil doesn't do what we all have come to accept (through hundreds of thousands of miles of personal experience) as reality, it sort of brings us to the ultimate conclusion that you are playing solitaire with a deck of 51 and counting flowers on the wall!

Ease up on yourself!

[bronsin]

Ha thats good for a laugh. Synthetic oil is NOT going to reduce our dependence on fossil fuel.

Thats a good example of the logic used by SO proponents.

But you are right to make up for the increased cost you will have to extend the oil change interval past what the owners manual calls for.

Walmart conventional oil is going for $12 for five quarts while their synthetic oil is going for $22 for....four quarts? Maybe its five.

So you better plan on about doubling your oil change interval using synth.


I am sorry to sound so nasty its just the facts...

[fnkngrv]

Originally Posted by bronsin

Ha thats good for a laugh. Synthetic oil is NOT going to reduce our dependence on fossil fuel.

Thats a good example of the logic used by SO proponents.

But you are right to make up for the increased cost you will have to extend the oil change interval past what the owners manual calls for.

Walmart conventional oil is going for $12 for five quarts while their synthetic oil is going for $22 for....four quarts? Maybe its five.

So you better plan on about doubling your oil change interval using synth.


I am sorry to sound so nasty its just the facts...

No worries here. As I said before this is a debate that can go round and round. I will be showing via an independent oil analysis this fall how strongly or weak that AMSOIL performs and we will see if I will need to eat my words. I am sponsoring all lubricants for a racing team at a local circle track this summer on one of their cars with AMSOIL products. He will be running the whole season on the standard AMSOIL long drain interval motor oil in a 94 Mercury Grand Marquis. This will be a true test to hard driving and the effects it has on the oil and motor. The track is only a 1/4 mile long and they of course due to that short track put a lot of stress on the engines. I will also be running a log on my replacement motor with their 5-20 Dominator Racing Oil using it for my DD and then at the Land Speed Runs as well. I am a man of my word so if after the results come back it shows that the AMSOIL product hasn't stood up to the claims that the company makes then I will admit that my beliefs were misguided.

[bronsin]

Originally Posted by fnkngrv

No worries here. As I said before this is a debate that can go round and round. I will be showing via an independent oil analysis this fall how strongly or weak that AMSOIL performs and we will see if I will need to eat my words. I am sponsoring all lubricants for a racing team at a local circle track this summer on one of their cars with AMSOIL products. He will be running the whole season on the standard AMSOIL long drain interval motor oil in a 94 Mercury Grand Marquis. This will be a true test to hard driving and the effects it has on the oil and motor. The track is only a 1/4 mile long and they of course due to that short track put a lot of stress on the engines. I will also be running a log on my replacement motor with their 5-20 Dominator Racing Oil using it for my DD and then at the Land Speed Runs as well. I am a man of my word so if after the results come back it shows that the AMSOIL product hasn't stood up to the claims that the company makes then I will admit that my beliefs were misguided.

Oh shucks use it if you want to.

[fnkngrv]

This is a cost comparison that even though it is at a 3k/3 month interval there will still be a savings when you adjust to 5k/3 month.

3k/3 month interval:

Conventional Oil 10w-30 (40qts needed for 25k miles)
@ $3.00/qt * 40 = $120.00
8 Standard Filters
@ 6.00/filter * 8 = 48.00

Total: $168.00

AMSOIL 25k/1 year interval:

AMSOIL 10w-30 (5 qts needed for 25k miles)
@ 7.35/qt * 5 = $47.75
1 EaO Filter
@ 18.30

Total: $55.05

Savings: $112.95 annually


Even if you only drive 12k miles per year you are saving just in oil/filter costs not to mention the following benefits:

- Easier cold-temp starting
- Improved fuel economy over time
- Cleaner running engine
- Cooler running temps
- Should experience more power/throttle response
- Less engine wear
- Longer intervals between changes which means less inconvenience of the car being at the shop

[bronsin]

Make it a recommended six month/6k mile interval for conventional oil then read the numbers.

I dont think you want to change oil less than every year and very few people drive anywhere near 25k miles in a year.

The only thing you say that makes sense is synth gives you better starting at really low temps like zero degrees or below. I would use it in the winter if it got that cold in NJ.

But it doesnt.

[brg88tx]

i run mobil 1 synthetic every 10,000 miles. let the filter go 10k too. never had any probs. don't believe the every 3k or 5k bs.

[daf62757]

Originally Posted by brg88tx

i run mobil 1 synthetic every 10,000 miles. let the filter go 10k too. never had any probs. don't believe the every 3k or 5k bs.

Same here. I have read too much data about the protection that synthetic oil gives the engine on cold starts. Plus the longer life protection. You can either break even with conventional oil by doing the 10k changes or go to 12-15 k and save money, but I am comfortable with 10k.

[bronsin]

It is what it is. I used 137 gallons to get there and 145 gallons to come back. Walmart Conventional Motor Oil on the way there Mobile One Synthetic Oil on the way back.

Whatever variables there may have been Mobile One was unable to overcome them and demonstrate its superiority.

And now you may reveal the results and conditions under which you conducted your test!

Or are you all talk?

[why?]

Originally Posted by bronsin

It is what it is. I used 137 gallons to get there and 145 gallons to come back. Walmart Conventional Motor Oil on the way there Mobile One Synthetic Oil on the way back.

Whatever variables there may have been Mobile One was unable to overcome them and demonstrate its superiority.

And now you may reveal the results and conditions under which you conducted your test!

Or are you all talk?

that is not a test and Mobil One is not a real synthetic. And you probably know that. Mobil One is based on the same oil that every other oil is based on, not real synthetic.

Amsoil is a real synthetic without any oil from the ground. Gigantic difference.

And can I please just state there is no such thing as dino oil. That is a total myth. Even the scientist who came up with that idea changed his mind.

And my oil changes cost $16 at my mechanic.

[bronsin]

This just keeps getting better and better.

Now Mobile One isnt synthetic oil.

Are you calling them liars?

Wait a minute we agree then Mobile One doesnt improve gas mileage. Now we are getting some place.

It certainly is a test its my test and if I didnt get better mileage using Mobile One then as far as I am concerned IT DOESNT IMPROVE GAS MILEAGE.

I invite anyone who who thinks Mobile One is synthetic oil to join me in rejecting these claims.

But I'll tell you what. Im riding my motorcycle to AK and back leaving next Friday. I will keep track of the fuel I use (the oil is Castrol GTX) and if anyone wants to find me some synthetic oil I'll use that on the way back and run the test all over again. Mty bikes uses 10-40.

I agree with you though oil doesnt come from dinosaurs. It comes from molusks that lived in the ocean.

Or do you say different we might as well get this straightened out.

[why?]

Originally Posted by bronsin

This just keeps getting better and better.

Now Mobile One isnt synthetic oil.

Are you calling them liars?

Wait a minute we agree then Mobile One doesnt improve gas mileage. Now we are getting some place.

It certainly is a test its my test and if I didnt get better mileage using Mobile One then as far as I am concerned IT DOESNT IMPROVE GAS MILEAGE.

I invite anyone who who thinks Mobile One is synthetic oil to join me in rejecting these claims.

But I'll tell you what. Im riding my motorcycle to AK and back leaving next Friday. I will keep track of the fuel I use (the oil is Castrol GTX) and if anyone wants to find me some synthetic oil I'll use that on the way back and run the test all over again. Mty bikes uses 10-40.

I agree with you though oil doesnt come from dinosaurs. It comes from molusks that lived in the ocean.

Or do you say different we might as well get this straightened out.

It is you who shouldn't be trusted. Wouldn't surprise me one bit if you just made that up to suit your point.

The oil companies have specific definitions they use to label what they sell. They do not always meet what we logically would think they mean. This is the same for all industries. They all have industry specific definitions they need to prescribe to.

Not to mention Mobil 1 lately has come under scrutiny lately because of certain tests other manufacturers have done.

A couple hundred miles never proves anything when it comes to automobiles. You can use anything you want to, but don't pretend to supposedly try something for a very short while and decide that you just had the ultimate test.

Just like adding soap to water makes it clean better, using actual synthetic oil makes cars behave better. To put it simply, if they did not why would anyone use them?

[jamal1984]

you guys worry too much :)
I always used Synthetic and whatever on sale out there or Free After Rebate i'm in.
You can call me cheap or whatever, but i do pay attention on how my engine sound and feel every time i'm doing my oil change.
1. Mobil1 Full Synthetic seem like a best deal = engine sound and feel strong, i will change my oil at 5K.
2. Quaker State or G-Oil seem ok = engine sound a little loud and feel kindda rough i will change my oil at about 3K.
All this FREE AFTER REBATE Synthetic oil deal out there last me for year after year.
I tried convention oil once and never do it again = very rough drive compare to synthetic and engine sound like it's about to blow up. I'm sure it's ok for yaris.
But with all this FREE after rebate deal on oil out there, there is no reason for me to spend it's on Royal Purple <---it's a great oil, no doubt.
beside it's a freaking Yaris - these are like corolla back then, it's will not gonna die on you.

[Happy Little Pony]

Can I just compromise and use a synthetic blend?