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Changing To Synthetic Fluids

HarryK

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HarryK Enthusiast

HarryK

Posted
Posted

Has anyone changed to fully synthetic on their new truck...

 

4.3L 4spd W/T reg cab 4WD...when can I go to full synthetic?

 

 

Thanks

Eddie 70 Senior Enthusiast

Eddie 70

Posted
Posted

I have no idea what was in my truck when I got it at 42k miles. I know that it now has Mobil 1 5w-30 in it. I will be changing the rest of the fluids at some point to synthetic also.

GPGuy Senior Enthusiast

GPGuy

Posted
Posted

30k Miles and I still run regular oil. :cool: Does that mean I'm banned? :cool:

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted

This has been asked 100's of times.

 

Just a thought to ponder, there are cars (corvettes) that come off the assembly line with Mobil 1 synthetic so does it matter when you switch?

mxdirtrider56 Enthusiast

mxdirtrider56

Posted
Posted

Usually it is recommended to wait a few thousand miles to let the motor break in before you change to a different kind of oil. After that you will be fine.

jblakeney Senior Enthusiast

jblakeney

Posted
Posted

Make the switch. Worse case it starts burning oil and you have to switch back to regular oil. But more than likely it will just clean the engine up and everything will be fine and dandy.

 

My 1999 GMC I purchased with 32k on it. The previous owner had filled the glove box with all the service records from the dealership. All the way from 10 miles on the clock. Every time it went to the dealership, oil change to warranty work, he got a paper and it was in the glove box. When I was looking the truck over at the dealership, I manged to find that and the salesman almost crapped a frog.... He tried to take it all from me... Did not work. After seeing who owned the truck and knowing him. I kept the records and asked to take the truck home that night and think it over. By the way after 500 miles the initial break in on the engine my truck was switched over to Castrol Syntec 10w30 and has had it in it every since.

 

On the way home I stopped at the previous owners house. I use to sell to him, he ran the city service center (truck, tractor, police, fire department, sanitation, etc, etc.....) He explained why he traded it quite easy. I bought a new camper... Had a 5th wheel installed. They delivered the camper and the guy that dropped the camper off. Ask if that was the truck he was intending on pulling the new camper with, he laughed and said... You need a 2500 or 3500..... My truck never pulled the new camper.... He traded trucks the next day.

 

But back to the problem at hand. I changed a 330,000 mile Oldsmobile 98 307 over to synthetic engine oil. The engine had always had Chevron Delo 400 15w40 in it. Switch it over to Castrol Syntec. Not one problem. That engine is still tight and does not burn oil. It made the switch with no problems.. Dad had always ran Delo in that car. I don't run delo in anything except diesel tractors, so I changed it over.... It currently has over 400k on it... Let me put a hot battery in it and get some fresh gas to the empty carburetor and it will bust right off.

 

Jbo

GPGuy Senior Enthusiast

GPGuy

Posted
Posted
30k Miles and I still run regular oil. :cool: Does that mean I'm banned? :cool:

 

 

136K with regualr oil, still runs like new.

 

Good to hear! I was beginning to think I was an odd ball. Or maybe I still am and there's just two of us. :cool:

tylerjenkins92@aol.com Senior Enthusiast

[email protected]

Posted
Posted
30k Miles and I still run regular oil. :cool: Does that mean I'm banned? :cool:

 

 

136K with regualr oil, still runs like new.

 

Good to hear! I was beginning to think I was an odd ball. Or maybe I still am and there's just two of us. :cool:

 

 

Yep, according to these people we are odd. If feels good to be odd, though. :cool:

RyanbabZ71 Senior Enthusiast

RyanbabZ71

Posted
Posted
Usually it is recommended to wait a few thousand miles to let the motor break in before you change to a different kind of oil. After that you will be fine.

 

Why is it a corvette engine straight off the factory floor has synthetic in it? Who recommends this?

 

I have more belief in the lockness monster than the synthetic oil tales

GPGuy Senior Enthusiast

GPGuy

Posted
Posted
30k Miles and I still run regular oil. :cool: Does that mean I'm banned? :lol:

 

 

136K with regualr oil, still runs like new.

 

Good to hear! I was beginning to think I was an odd ball. Or maybe I still am and there's just two of us. :cool:

 

 

Yep, according to these people we are odd. If feels good to be odd, though. :cool:

 

 

Yes it does! We could look at it as unique though. :cool:

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