I have been lurking in the group for a few months and I don't recall seeing this oil question. If it has been asked and answered I must have missed it and apologize in advance. I bought my first Mustang this year (2003 GT) and I have about 1500 miles on it. I want to change the oil and filter is it OK to use a synthetic now or should I stay with the Dino oil for a while? Thanks for your help, I love the newsgroup and have learned a lot from you folks about Mustangs, thanks again.
Oil Again
Aug 15, 2003
3 Replies
Go ahead and change to synthetic if you want. I ran dino for ~1000 miles in mine before I switched.
A good synthetic will do marvels for your engine now and it's fine to use in new engines. Ford specifies 5W-20 for all engines post 1999/2000. Don't get hung up on the grade...I use 5W-30 in my 4.6 2002 F150...and I will be switching to 0W-30 from Amsoil. Few "real" synthetics have 5W-20 avaliable. The good ones in my book, (I may get flamed for this...) are...
Amsoil... Redline... Royal Purple...(although I have some questionning about quality assurance..) Mobil 1
There are others, as long as they are either Ester or PAO based. Stay away from the hydro cracked base stock such as the castrol, quaker and other semi synthetic. I would even stay away from the 7500 series offered by Amsoil as they are formulated from a hydro cracked base...I feel these are not worth their premium price...
2 cents...Serge
Well, this makes twice I've seen the brand names Redline and Royal Purple. Seem they make Antifreeze/coolant and motor oil. The only name mentioned that I do know about is Mobil 1. Not sure if I'd try something new in my car yet, so I'm going to vote for Mobil 1 as the full synth oil that should be used now the engine is broken in.
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