How many miles should I put on before switching

[johns]

I have a 2003 Ford supercrew that will be getting its first oil change on Saturday. I intend to switch to synthetic oil at some point, but am wondering how many miles I should put on it before I switch. I planned to have the dealer use regular oil for the first oil change (1300 miles on it now) and then to switch at 5000 miles. Any opinions??

 

[williar]

Sounds like a plan, although you can switch to synthetic whenever you've a mind to. Or not.

Personally, I like your 5000 mile changover idea, particularly if you'll be putting lots of miles on the rig and changing the synthetic oil every, say, 10,000 miles.

 

[Steve S]

It really doesn't matter when you change over to syn lube the rings allmost instantly seat once under a load . I like a couple of 1,000 mile oil and filter changes to flush out the machining dirt. I can't improve on youe plan

[ June 05, 2003, 05:34 PM: Message edited by: Steve S ]

 

[johns]

Thanks for the help. I didn't want to switch before the engine was broken in.

 

[Al]

Synthetic really has no effect on the engine breaking in. I would just switch at the next change. I switch at the first oil change. I have changed as soon as 30 miles with no problems.

 

[YZF150]

For comparison, I'm driving a 2003 Scab. Changed the oil at 500 and 1000, using the Motorcraft 5w-20 each time. Went to synthetic 5w-30 at 1900 miles. No problems, no complaints.