help which oil do i use

[gavinnblake]

hi all
 
need help I have been pitting
Castrol GTX 10w-40 A3/B3
superior engine protection
 
in to my
1996 Mazda RX-7 Type R Single Turbo T88 34D Rotary Engine 13B
for 1 year now just found out it discontinued
 
there have
Castrol GTX 10w-40 A3/B4
part synthetic
 
from the warranty I was not allowed to use of synthetic or semi-synthetic oil will invalidate warranty

[davehg]

Use only mineral and I personally use either 10-40 or 15-40

[gavinnblake]

Can I use Shell Helix HX5 15W-40 Multigrade Engine Oil

[Aliakeel]

I\'m using racing valvoline 20w 50 in my single turbo in summer and change it to 10 w40 in winter .

[neil_jdmr]

I started rotary life using castrol gtx mineral then it stopped, then halfords cheapo mineral before it too was discontinued and am now on tesco value mineral all 10/40w but the way the trend is going ill be on Harry ramsdens 10/40w before long.

[Bobbit]

but the way the trend is going ill be on Harry ramsdens 10/40w before long.

I lol\'ed at this. Mmm chips!

[allrounda88]

i use motul 4000 motion 15w-40 mineral oil or mobil

[gavinnblake]

Pip from WGT said to use shell helix HX5 15W-40