Actually the reason I only ran it in winter was that I was unable to find a synthetic for the brand I was using in 10W30 instead of the 5W30. Maybe I was not looking hard enough but sometimes you can't see the forest for the trees. Now that I am looking at different brands, I am sure I saw a synthetic 10W30 by Castrol so I will probably run that. My next oil change is free from the dealer and as my P5 has not reached its first oil change as yet, I guess it would have to be the 2nd one for me to try the synthetic in the new ride. However I have an 1988 323 and the oil change is getting done this wekend so I will use it in this one.

Chris

 

Maybe I'm wrong on this but I thought Mobil 1 was factory fill with Porsche too. Anyway thats what I'm using, and I love it.

 

What grade oil is everyone using? I've been using 10W30 Mobil 1 Synthetic. I was wondering if I should use 5W30. I live in a pretty hot area of the country - Florida.

 

For those of you using synthetic.. how often are you doing oil changes? Every 8,000km or every 10,000km?

PJStyles

 

Negatize,
I'd stick with 10W-30 for where you live. 5W-30 is meant for those of us in colder climates. Heck, some don't even think that we should run 5W-30 here in Canada.

Check out the manual....it gives which grade of oil to use and shows the temperature range for the oil.

BTW, I'm running 5W-30 year round. Dealer said that's what they do here in Calgary.

 

10W-30....just like the book recommends for my area/temp range.

 

I always have used, and always will use Castrol GTX.

as for oil filters, NEVER USE A FRAM!. I can't stress this engouh.

Click here , then decide what filter (other than OEM) to buy .

 

Mobil 1 is the ONLY way to go!

 

Richard, thanks for the info, and you were right that site is down. Funny I have been using those Fram filters for years but on my other cars. See what happens when you live in a cave . I guess it just shows you that there is mucho info out there and sites like these sure help you find it. So no more Fram for me.

dre2000, I printed off that filter info from that site and will have a read through it. 18 pages of info, wow!!

Found some Mobil 1 tonight and saw it said TriSynthetic on it. What the heck does that mean? I'm thinking it is a synthetic blend of some sort.

 

Wil, is that what Mazda calls the filter or is there some other code. Hmmm, I'll check with my parts guy at the dealer.

Actually it was scary reading about those filter tests. Makes me feel as if I have been damaging my engines all these years. Oh well, move on I guess.

Thanks for the info.
Chris

 

just ask for the V6 filter, there is only one filter model number for all Mazda V6's.