I'm sure this is already talked about but I couldn't find the topic, and I need the post anyway. I just bought a 97 civic ex with 170,xxx on it. I'm wondering if I should use synthetic in it. I bought it from a used car dealer so it had fresh oil in it, probably the cheapest they could find. I also read the thread saying that sea foam is good so I'm gonna do that soon and was wondering if I should change over to synthetic afterward.

 

I read somewhere that before switching to synthetic its best to do a motor flush and also on higher mile engine you might get little leaks to start up,i would just use castrol high mileage non synthetic oil but just my opinion someone correct me if im wrong

 

I don't think you search very hard.
http://www.google.com/search?q=civic...e4c0cc530c3619

 

I did search but I'm doin this on my phone so...

 

good point. Yeah synthetic is fine, and will free up a few ponies/ give you better gas mileage. You sound like you are on the right track with the seafoam

 

I appreciate the link it was helpful. Thanx

 

http://www.mobiloil.com/USA-English/....aspxQuestion:
Switching From Conventional Motor Oil to Mobil 1
There seems to be confusion about how to make the switch from conventional motor to synthetic. I am a do-it-yourselfer. Could you provide instructions?
-- Joe D., Miami, FL

Answer:
The instructions are very easy to follow: Simply change the oil as you would normally. Any “confusion” is just myth. You can switch from conventional motor oil to Mobil 1 synthetic (and back again, if you want), without following any special procedures.

The only exception to this is with a higher-mileage engine that has never used synthetic motor oil, or with an engine that has used conventional motor oil and been poorly maintained. In these cases, you should still follow the same basic oil-change procedures (drain the old oil, remove the old oil filter, put in new Mobil 1 and put on a new oil filter), but you should follow a regimen of one or two shortened oil-change intervals. For instance, let’s say that your regular oil change interval is 5,000 miles. If you’re switching to Mobil 1 under the circumstances mentioned above, make your next Mobil 1 oil change in 2,500 miles, your third Mobil 1 oil change 3,500 miles after that, and then follow your normal 5,000 mile oil-change interval. The reasoning behind this staggered interval is that a high-mileage engine, or one that has seen infrequent oil changes, will likely have a considerable build-up of sludge and deposits. Mobil 1 will help clean the engine as you drive, but it will have to work much harder in a very “dirty” engine, and so it is best to change the oil more frequently for those first few thousand miles. After that, you can rest assured that Mobil 1 is continuing to keep your engine running clean and well lubricated for mile after mile.