What are the ramifications of this? Good? Bad? After the oil thread I read the other day, I'd like to switch to Castrol GTX from Mobile 1 Tri-Synthetic. Is this possible, or do I run the risk of assorted problems inside my engine?

 

just do it. nothing to worry about.

 

why would you want to go dino from synthetic????

 

i personally switched to castrol from mobil one because b/t track events my car never is driven hard. Plus I save some $$ for not having to buy mobil 1. So i say its ok. I use synthetic only when I know i'll be driving hard at an event.

tj

 

There really is no problem with doing that. I too read the entire oil thread and I ended up just using mobil 10-30 non-synthetic.

 

It's very possible. I've swayed a large number of friends to castrol gt-x from mobil 1 and no have had problems. I have a lot of castrol gt-x miles on my motor and it's still strong as fug and clean

 

what about if my car is almost 80k miles, can still switch to non synthetic no problem? my car just started burning oil this summer when i switch from 15w50 to 5w30. daily driven, not always vtec-ed.

 

Good to see I'm not the only one who like Castrol

 

ive gone back to regular oils as well. Mobils were too thin and I was burning too fast. Regs have slowed it down until I can get the valve guide SEALS punched out when I send it out for the P&P

 

D switched to Castrol GTX at 70K or so.

Castrol GTX owns all IMO.

 

thats what i run. castrol gtx. no problems and cheaper than mobil 1. never had much luck with the synthetics either. the mobil 1 burnt off way too quick too

 

dammit, and i just bought 2 cases (12 bottles) of Mobil 1

 

If you want to be cautious. Buy a case of cheapo 10w30 and engine flush, then flush your motor completely of the old synthetic oil.


[Modified by Tommy_Gunns, 4:13 PM 10/6/2002]

 

I thought you couldn't go back to dino from synthetic? Something about the seals.

 

same here..

 

no problems when i switched back