Can you go from synthetic to regular oil?

 

To the best of my knowledge, you can. But, why would you want to? Mobile 1 usually runs about $23 for 6 qts. at Wal-Mart.

 

Yes you can. Good choice. The only regrets you will have is all the money you have spent out for the syn. oil in the past.

Use Havoline 10-30. You can't go wrong.

BTW, I have oil reports from Blackstone Labs, www.blackstone-labs.com and I am telling you, regular over synthetic is much better for our engines, and the wear is MUCH less. Most people think that if one oil is cheaper than the other, that it is no good. You are paying for a brand name, and expensive labels when you buy any synthetic, including AmsOil and Mobil 1.

Disclaimer: I am NOT going to argue about this w/ anyone. Everyone has their own opinions, but I changed my mind when I seen lab analysis, over and over again.

Good luck!

 

I use what I call 1/2 n' 1/2 (semi-synthetic). And I also will use Angela's first sentence in her disclaimer.

 

Interesting. Link?

 

regular oil is cheaper but so many people use synthetic incorrectly and dont get to see the benefit..

so lets see..

Valvoline at 1.87 a qt.. 6 qts per change thats 11.22
Filter.. hmm how about AC Delco at 4.50
so for this change we are spending 15.72 and will do so again in 3K miles.

now .. for mobil 1.
5qts at 19.87. thats 3.97 a qt.. so 23.85 for the 6 qts..
mobil 1 filter.. thats $10.00
33.85 for a change..

and I wont change it for another 7500-12000 miles..

looks like synthetic wins in my book..

 

the myth ive always heard was you couldnt convert back to regular oil because it would gel up and clog your oil pump. totally unfounded as i only use mobil-1 but after h/c installed mechanic used regular. no problems, but back to synthetic.

as far as lab results, not all oil is the same. anybody who deals with military fuels, oils, etc. know you must present a thermal,cold-friction, and pre/post particle analysis. they want the better grade materials for the lower price, but bottom line is they want the better stuff. tolerances are not a big deal to every day people, with everyday vehicles. try handing john force some oil off the shelf and see if he uses it. or put k-mart oil in anything from a f-14 to a humvee.

 

No, you can use any sample, as long as it is mid stream from your oil change.
I am not going to argue w/ a company that has been doing reliable oil results
for so many years. Just call Blackstone, I am sure they can explain it better to you

As far as k-mart oil, I have seen Mobil 1 down to Penzoil 30 at walmart, I don't see your point.

 

I'm interested in hearing more from 350 HRSS and the samples sent in vs. the reports that were received. Did you send in a synthetic vs. regular sample to compare the two? What were their responses in the multiple oil reports you have? The other f-body I had ran regular for the first 36,000 miles and I never had any problems with it. Just curious what you heard back.

 

I had sent in AmsOil, Mobil 1 and Havoline (regular) samples. I can possibly email you a document or 2 if you like, just send me an email at: hotrodn350@hotmail.com

Their responses were better, and much more encouraging when I used the regular Havoline oil. The oil was cleaner every time. The car I am talking about has 93k on it. I also do the reports on the 99 TA and the 95 V6. When I bought the 99 TA, it had synthetic in it, and I did a sample off of it.
It had shown more metal in the sample. When I put the Havoline in it, the reports were much more encouraging wear-wise. I used to dog people that used regular oils, as I was very faithful to AmsOil, AND their filters.

I am getting ready to leave for the day, but I will try to check my email tonight, if you want to see a sample report.

 

ur all mite not break down for 7k, but it's still going to get dirty before that in most cases. Changing all frequently is money well spent, in my opinion.

I used to use Mobil 1, 5W 30, but have recently switched to Dino oil 10w40. Had some issues with valve train and just didn't want to take any chances with my all.

I believe "synthetic" all includes mineral based as well as man/women made lubes. The exact formulas for different brands may vary and the conclusive evidence, in my opinion, has not been determined. Hyped, yes. Factually determinded--not so much.

My SS came with Quaker syns throughout and then they switched to Mobil 1 (for vettes too.)

Dino products have been around for a long time and they have improved greatly over the years. I believe that today's dinos will do the job needed to be done. JMHO

 

It's too dirty and dusty around here to go that long. 4,000 miles tops in my book.

 

For used oil, Cleaner is bad, it means more crap is being left in the motor and less is being washed out by the detergents in the oil.

A member on this board did his own oil analysis and found catrol 0w30 (german made) or 0w40 local made to have the best results in terms of metal wear, i guess the results depend on how the tests were done and who you talk to.

 

Are you crazy????????????? When I used mobil one i had to change the oil at least every 2k miles or the engine would start sounding a bit more mechanical....

So no, it doesn't win in my book.
I use havoline 30HD and change it every 700-800miles.

 

umm...isnt the engine mechanical? gears, pulleys etc.

"No, you can use any sample, as long as it is mid stream from your oil change.
I am not going to argue w/ a company that has been doing reliable oil results
for so many years. Just call Blackstone, I am sure they can explain it better to you

As far as k-mart oil, I have seen Mobil 1 down to Penzoil 30 at walmart, I don't see your point."

actually what exactly is your point angela? if you have seen from mobil 1 to oil brand xxxx123 whatever, then you will my point that not all or half or even a quarter of oils are the same. no more than coke and pepsi are the same soda, many have the same ingrediants if you will but totally differant signature. their are people in the oil industry you can send your "blackstone" samples or any sample and they can tell exactly what country is was drawn from right down to what pool its from. oil signature its called. but i guess that doesnt exist because "all oil is the same"
i see you didnt what to argue this, fine with me but you did. i was making a statement that all oil is NOT the same at all.