Is it ok to switch to using synthetic motor oil after having used regular oil for 30k miles? Pros & Cons??

Answer 1

yeah it's ok. Synthitecs flow better in the cold, protect parts better and last longer between oil changes. You just don;t want to use it on brand new motors until they are broke in. The synthetics don't allow them to break in properly.

Answer 2

The two oil types can be mixed, but is not always safe. Some synthetic oil with additive is known to break down the sludge build up in the engine and cause it to block the oil circulation holes in cylinder head. This is why you should NEVER get that engine clean/flush service. In most cases, going to synthetic oil is perfectly safe (if you have been changing oil every 3000, then there is no engine sludge to worry about)

Answer 3

I did. I have a 97 Olds Cuttlas Supreme, with the v-6 engine
My trusted mechanic told me about the synthetic oil, at 50K .
My millage came up some, engine is easier to start in very cold tempratures, I can go longer between oil changes.

Only bad thing that I can think of, is that a normal oil change was, 29.95$, now with the synthetic oil, it is closser to $50 now.

Final choice is of course yours.

Answer 4

Yes. I would recommend you keep using synthetic oil from now on. I have installed wind power turbines and usually use non- synthetic gear oil only for a break in period. After that its synthetic oil for the life of the turbine.

Answer 5

Yes. Anyone that tells you different is old school. There used to be issues with that when Synthetic was first developed however modern day motors are not phased by the switch at all... excpet in a good way...

Answer 6

yes it should be fine, as long as the engine is in good shape and has had the oil changed routinely all its life so far,

i would probably not switch over to the full synthetic though,

i would go with castrol gtx or valvoline, etc.

if youre not going to keep the vehicle til it dies and needs another engine then theres no real point in doing this though, as regular engine oil has everything in it that the engine needs, and if the vehicle does not see severe/harsh conditions regularly then thats even more reason ot not need to use synthetic

good luck

Answer 7

It's fine. In fact, most people don't use synthetic for the first few thousand miles because it lubricates so well the engine might not break in properly.

Answer 8

syn is great. dont use it in a old wore out leaker..Its thinner. bad part is it costs more but i go 7 ooo miles between changes and have 115,000 miles on my s10 runs grrreat!