Suggestions needed for oil in a 400 and a 365 Boxer

04-12-2004, 12:30 PM

It is time to change the oil and filters on my 1977 400 Auto and my 1976 365 Boxer. In the past I have used Castrol GTX 20w50 but I can't seem to find this in the UK at the moment, only GTX 10w40. I am reluctant to use synthetic, such as Mobil 1, as I don't want to create oil leaks. I have seen Shell Helix 10w40 locally at a good price. Should I use GTX or Helix or something else?

I will be using UFI filters.

Simon

04-12-2004, 07:43 PM

I would wait and try to find the castrol. I sure as hell would not put synthetic in a Boxer.

04-13-2004, 04:36 AM

Simon,

I've run Mobil 1, 15W-50 in my 365BB for at least 15 years without any excessive leaks. In the same breath, I've used 20-50GTX in virtually every other car I've owned...I, too, have heard the "rummors" that a synthetic may leak more. I've never found that to be true but can understand the engineering on how it could leak more...

A 10W-40, dino-based oil would be a safe choice, as well...presuming reasonable operating conditions.

Regards,
David

04-12-2004, 12:30 PM	#1 (permalink)
Simon Campbell (Simonc) Posts: n/a	It is time to change the oil a It is time to change the oil and filters on my 1977 400 Auto and my 1976 365 Boxer. In the past I have used Castrol GTX 20w50 but I can't seem to find this in the UK at the moment, only GTX 10w40. I am reluctant to use synthetic, such as Mobil 1, as I don't want to create oil leaks. I have seen Shell Helix 10w40 locally at a good price. Should I use GTX or Helix or something else? I will be using UFI filters. Simon

04-12-2004, 07:43 PM	#2 (permalink)
Glassman (Unregistered Guest) Posts: n/a	I would wait and try to find t I would wait and try to find the castrol. I sure as hell would not put synthetic in a Boxer.

04-13-2004, 04:36 AM	#3 (permalink)
David Feinberg (Fastradio2) Posts: n/a	Simon, I've run Mobil 1 Simon, I've run Mobil 1, 15W-50 in my 365BB for at least 15 years without any excessive leaks. In the same breath, I've used 20-50GTX in virtually every other car I've owned...I, too, have heard the "rummors" that a synthetic may leak more. I've never found that to be true but can understand the engineering on how it could leak more... A 10W-40, dino-based oil would be a safe choice, as well...presuming reasonable operating conditions. Regards, David

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)