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Jan 26, 2010 | 11:51 AM

Blackwaterforge

Thread Starter

Senior User

Joined: Feb 2005

Posts: 468

Likes: 9

From: Alabama

synthetic

My truck has 130000 miles. I have always used Delo 400 15/40.
Should I switch to a synthetic?
Thank You!

Jan 26, 2010 | 12:48 PM

Cowboy65

Elder User

Joined: Jul 2009

Posts: 919

Likes: 0

From: Smiths Grove, KY

The use of synthetic vs conventional oil comes down to what you think is best for your truck. Some have switched from conventional to synthetic then back to conventional because their truck ran better before the switch. Some have switched to synthetic and not gone back.

There are many many threads that discuss oil on FTE. Use the search feature and you will be entertained for hours reading opinions.

I have never heard of anyone switching at 130K. I am personally a synthetic user, however if I had 130K on my truck with no problems I would be inclined to stick with what has been working.

Jan 26, 2010 | 01:05 PM

ljutic ss

Posting Guru

Joined: Apr 2008

Posts: 2,392

Likes: 1

From: Green Lane, Pa.

If I lived in your area of the country I would stick with the 15W-40.

Jan 26, 2010 | 05:05 PM

DSMMH

Fleet Mechanic

Joined: Jun 2006

Posts: 1,589

Likes: 20

IMO, it is never too late to switch to synthetic oil. Every lubricant in my X is synthetic and has been that way for 83,000 miles with no problems.

As Cowboy65 says, the reading on this topic is limitless on this site.

DSMMH

Jan 26, 2010 | 05:20 PM

D8chumley

Resident smarta$$

Joined: Aug 2006

Posts: 4,929

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From: Oaks,PA

I switched around 130k, but thats b/c my truck doesn't live in Texas anymore. Actually I don't know what the PO used but I chose to spend the extra $$ per gal. My truck likes the syn alot better.

Jan 26, 2010 | 05:26 PM

69cj

Hotshot

Joined: Jul 2005

Posts: 13,834

Likes: 26

From: Middle Tn.

I use the 5W40 syn. in sunny Ca. My truck likes it and that's almost like keeping the wife happy. It's worth it vrs. the hassle.

Jan 26, 2010 | 07:49 PM

adambomb

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Joined: Oct 2005

Posts: 1,285

Likes: 1

me too in so cal. i can see the the pros and cons from both sides but i see more benefits with our motor but it's not like 15w40 with 5000k mile changes is doing harm.